O-Substituted phenylsulfonamides

ABSTRACT

N-Phenylsulfonyl-N&#39;-pyrimidinyl- and triazinylureas of the general formula ##STR1## and the salts thereof with amines, alkali metal or alkaline earth metal bases or with quaternary ammonium bases, have good pre- and postemergence selective herbicidal and growth regulating properties. In the above formula 
     A is a C 1  -C 6  haloalkyl radical, 
     E is the methine group or nitrogen, 
     X is oxygen, sulfur, a sulfinyl or sulfonyl bridge, 
     Z is oxygen or sulfur, 
     m is 1 or 2, 
     R 1  is hydrogen, halogen, C 1  -C 5  alkyl, C 2  -C 5  alkenyl or a radical --Y--R 5 , 
     R 2  is hydrogen, halogen, C 1  -C 5  alkyl, C 2  -C 5  alkenyl, C 1  -C 4  -haloalkyl, or a radical --Y--R 5 , --COOR 6 , --NO 2  or --CO--NR 7  --R 8 , 
     R 3  and R 4 , each independently of the other, are hydrogen, C 1  -C 4  alkyl, C 1  -C 4  alkoxy, C 1  -C 4  alkylthio, C 1  -C 4  haloalkyl, halogen or alkoxyalkyl of at most 4 carbon atoms, 
     R 5  and R 6 , each independently of the other, are C 1  -C 5  alkyl, C 2  -C 5  alkenyl or C 2  -C 6  alkynyl, 
     R 7  and R 8 , each independently of the other, are hydrogen, C 1  -C 5  alkyl, C 2  -C 5  alkenyl or C 2  -C 6  alkynyl, and 
     Y is oxygen, sulfur, a sulfinyl or sulfonyl bridge, with the proviso that m is 2 when at the same time A is --CHF 2 , --CF 3 , --CH 2  --CF 3 , --CF 2  --CHF 2 , --CF 2  --CHFCL, --CF 2  CHFBr or --CF 2  --CHF--CF 3  ; R 3  is OCH 3  or CH 3  ; R 4  is OCH 3 , --CH 3 , --OC 2  H 5 , --CH 2  --O--CH 3  or --CH 2  --CH 2  --OCH 3 , and the phenyl nucleus is not substituted or is substituted in the 2-, 3-, 5- or 6-position to the sulfonyl group only by one further substituent selected from the group consisting of F, Cl, Br or --CH 3 .

This is a divisional of Ser. No. 282,779, filed July 13, 1981, now abandoned.

The present invention relates to novel N-phenylsulfonyl-N'-pyrimidinyl- and triazinylureas having herbicidal and plant growth-regulating properties, to the production thereof, to compositions containing them, and to the use thereof for controlling weeds, in particular selectively, in crops of useful plants, or for regulating and inhibiting plant growth. The invention also relates to novel phenylsulfonamides prepared as intermediates.

The N-phenylsulfonyl-N'-pyrimidinyl- and -triazinylureas of this invention have the general formula I ##STR2## wherein A is a C₁ -C₆ haloalkyl radical,

E is the methine group or nitrogen,

X is oxygen, sulfur, a sulfinyl or sulfonyl bridge,

Z is oxygen or sulfur,

m is 1 or 2,

R₁ is hydrogen, halogen, C₁ -C₅ alkyl, C₂ -C₅ alkenyl or a radical --Y--R₅,

R₂ is hydrogen, halogen, C₁ -C₅ alkyl, C₂ -C₅ alkenyl, C₁ -C₄ haloalkyl, or a radical --Y--R₅, --COOR₆, --NO₂ or --CO--NR₇ --R₈,

R₃ and R₄, each independently of the other, are hydrogen, C₁ -C₄ alkyl, C₁ -C₄ alkoxy, C₁ -C₄ alkylthio, C₁ -C₄ haloalkyl, halogen or alkoxyalkyl of at most 4 carbon atoms,

R₅ and R₆, each independently of the other, are C₁ -C₅ alkyl, C₂ -C₅ alkenyl or C₂ -C₆ alkynyl,

R₇ and R₈, each independently of the other, are hydrogen, C₁ -C₅ alkyl, C₂ -C₅ alkenyl or C₂ -C₆ alkynyl, and

Y is oxygen, sulfur, a sulfinyl or sulfonyl bridge, and salts of these compounds, with the proviso that m is 2 when at the same time A is --CHF₂, --CF₃, --CH₂ --CF₃, --CF₂ --CHF₂, --CF₂ --CHFCL, --CF₂ --CHFBr or --CF₂ --CHF--CF₃ ; R₃ is OCH₃ or CH₃ ; R₄ is OCH₃, --CH₃, --OC₂ H₅, --CH₂ --O--CH₃ or --CH₂ --CH₂ --OCH₃, and the phenyl nucleus is not substituted or is substituted in the 2-, 3-, 5- or 6-position to the sulfonyl group only by one further substituent selected from the group consisting of F, Cl, Br or --CH₃.

Herbicidally active ureas, triazines and pyrimidines are generally known in the art. Arylsulfamoyl-heterocyclylaminocarbamoyl compounds with herbicidal and plant growth-regulating action have recently been described, for example in European patent publications Nos. 1514 and 1515, U.S. Pat. No. 4,127,405, German Offenlegungsschrift 2 715 786 or French patent specification No. 1 468 747.

In the above definitions, alkyl denotes straight-chain or branched alkyl, e.g. methyl, ethyl, n-propyl, isopropyl, the four isomers of butyl, n-amyl, isoamyl, 2-amyl, 3-amyl, n-hexyl or isohexyl.

Alkoxy denotes methoxy, ethoxy, n-propyloxy, isopropyloxy and the four butyloxy isomers, and is, in particular, methoxy, ethoxy or isopropyloxy.

Alkylthio is e.g. methylthio, ethylthio, n-propylthio, isopropylthio and n-butylthio, with methylthio and ethylthio being preferred.

Examples of alkenyl radicals are vinyl, allyl, isopropenyl, 1-propenyl, 1-butenyl, 2-butenyl, 3-butenyl, 1-isobutenyl, 2-isobutenyl, 1-pentenyl, 2-pentenyl, 3-pentenyl and 4-pentenyl, with vinyl, allyl and 4-pentenyl being preferred.

Alkylsulfinyl is e.g. methylsulfinyl, ethylsulfinyl, n-propylsulfinyl and n-butylsulfinyl, with methylsulfinyl and ethylsulfinyl being preferred.

Alkylsulfonyl is e.g. methylsulfonyl, ethylsulfonyl, n-propylsulfonyl and n-butylsulfonyl, with methylsulfonyl and ethylsulfonyl being preferred.

Halogen in the definitions of R₁ and R₂ and in haloalkyl, haloalkoxy, haloalkylsulfinyl, haloalkylsulfonyl and haloalkylthio is fluorine, chlorine and bromine, with fluorine and chlorine being preferred.

A haloalkyl radical A is a radical which carries one or more halogen atoms. Preferably several hydrogen atoms, and optionally even all hydrogen atoms, of the alkyl radicals are replaced by halogen atoms.

The invention also comprises the salts which the compounds of formula I are able to form with amines, alkali metal and alkaline earth metal bases or quaternary ammonium bases.

Preferred salt-forming alkali metal and alkaline earth metal hydroxides are the hydroxides of lithium, sodium, potassium, magnesium or calcium, most preferably of sodium or potassium.

Examples of suitable salt-forming amines are primary, secondary and tertiary aliphatic and aromatic amines such as methylamine, ethylamine, propylamine, isopropylamine, the four isomeric butylamines, dimethylamine, diethylamine, diethanolamine, dipropylamine, diisopropylamine, di-n-butylamine, pyrrolidine, piperidine, morpholine, trimethylamine, triethylamine, tripropylamine, quinuclidine, pyridine, quinoline and isoquinoline. Preferred amines are ethylamine, propylamine, diethylamine or triethylamine, with isopropylamine and diethanolamine being most preferred.

Examples of quaternary ammonium bases are, in general, the cations of haloammonium salts, e.g. the tetramethylammonium cation, the triethylbenzylammonium cation, the triethylbenzylammonium cation, the tetraethylammonium cation, the trimethylethylammonium cation, and also the ammonium cation.

Preferred compounds of the formula I are those in which

(a) Z is oxygen and

(b) R₃ and R₄ together contain not more than 4 carbon atoms.

Group (a) can be divided into two further subgroups which consist of compounds in which

(aa) m is 1, and

(ab) m is 2.

Preferred compounds in group (aa) are those in which the radical --X--A is in the 2- or 3-position to the sulfonyl radical. Among these preferred compounds further preference attaches to those compounds in which the radical --X--A is in the 2-position.

A preferred group of compounds in group (ab) comprises those compounds in which both radicals --X--A are in the 2 and 5-position to the sulfonyl group.

A further preference in connection with compounds of the above subgroups (aa) and (ab) consists in the feature that the radicals R₃ and R₄ together contain at most 4 carbon atoms. Accordingly, particularly preferred groups of compounds of formula I are the groups

(aab) in which only one radical --X--A is in the 2-position to the sulfonyl radical, and R₃ and R₄ together contain not more than 4 carbon atoms, and

(abb) in which two radicals --X--A are in the 2- and 5-position to the sulfonyl radical, and R₃ and R₄ together contain not more than 4 carbon atoms.

Preferred compounds belonging to the group (abb) are those in which A is --CHF₂, --CF₃ or --CH₂ --CH₂ Cl.

Preferred compounds of the group (aab) are those in which R₁ is hydrogen and R₂ is in the 5- or 6-position to the sulfonyl group.

Among these preferred compounds, preference attaches in turn to those compounds in which R₂ is hydrogen, fluorine, nitro or COOR₆.

Further preferred compounds within this last mentioned group are those in which X is oxygen or sulfur. Of these compounds the most preferred are in turn those compounds in which both R₁ and R₂ are hydrogen, R₃ is chlorine, fluorine, methyl, chloromethyl, ethoxy, isopropyloxy, ethyl or methoxy, and R₄ is methyl, ethyl, methoxy or ethoxy.

Two further preferred subgroups of compounds within this last group comprises those compounds in which

(α) the bridge member X is oxygen and

(β) the radical A is --CF₂ G, wherein G is hydrogen, F, Cl, Br, CF₃ or CH₃.

Preferred compounds within group (β) are those in which G is Cl, Br or CF₃.

Compounds which enjoy the same preference as the compounds of groups (α) and (β) are those in which A is --CH₂ F, --CH₂ --CH₂ Cl or --CH₂ --CH₂ F.

Of the compounds of formula I in which Z is sulfur, those compounds are preferred in which X is oxygen or sulfur and each of R₃ and R₄ independently is C₁ --C₃ alkyl, C₁ --C₃ alkoxy or C₁ --C₃ alkylthio, containing together at most 4 carbon atoms, and A is --CHF₂, --CF₃, --C₂ F₅ or --CF₂ CHF₂, and the radical --X--A is in the 2-position and m is 1.

Preferred individual compounds are:

N-(2-difluoromethoxyphenylsulfonyl)-N'-(4-ethyl-6-methoxy-1,3,5-triazin-2-yl)urea,

N-(2-difluoromethoxyphenylsulfonyl)-N'-(4,6-diethoxy-1,3,5-triazin-2-yl)urea,

N-(2-difluoromethoxyphenylsulfonyl)-N'-(4-chloro-6-methylpyrimidin-2-yl)urea,

N-(2-pentafluoroethoxyphenylsulfonyl)-N'-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)urea,

N-(2-difluoromethylthiophenylsulfonyl)-N'-(4-chloro-6-methoxy-pyrimidin-2-yl)urea,

N-[2,5-bis-(difluoromethoxy)phenylsulfonyl]-N'-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)urea,

N-(2-difluoromethoxyphenylsulfonyl)-N'-(4-methoxy-6-isopropyloxy-1,3,5-triazin-2-yl)urea,

N-(2-difluoromethylthiophenylsulfonyl)-N'-(4-ethyl-6-methoxy-1,3,5-triazin-2-yl)urea and

N-(2-difluoromethoxyphenylsulfonyl)-N'-(4-chloro-6-methoxy-pyrimidin-2-yl)urea.

The process for obtaining the compounds of formula I is carried out in an inert organic solvent.

In a first process, the compounds of the formula I are obtained by reacting a phenylsulfonamide of the formula II ##STR3## wherein A, R₁, R₂, X and m are as defined for formula I, in the presence of a base, with a N-pyrimidinyl- or N-triazinylcarbamate of the formula III ##STR4## wherein E, R₃, R₄ and Z are as defined for formula I.

In a second process, compounds of formula I are obtained by reacting a phenylsulfonylisocyanate or phenylsulfonylisothiocyanate of the formula IV ##STR5## wherein A, R₁, R₂, m, X and Z are as defined for formula I, optionally in the presence of a base, with an amine of the formula V ##STR6## wherein E, R₃ and R₄ are as defined for formula I.

In a further process, the compounds of formula I are obtained by reacting a sulfonamide of the formula II above, optionally in the presence of a base, with an isocyanate or isothiocyanate of the formula VI ##STR7## wherein E, R₃, R₄ and Z are as defined for formula I.

Finally, the compound of formula I can also be obtained by reacting a N-phenylsulfonylcarbamate of the formula VII ##STR8## wherein A, R₁, R₂, m and X are as defined for formula I, with an amine of the formula V above.

If desired, the ureas of formula I can be converted into salts with amines, alkali metal or alkaline earth metal hydroxides or quaternary ammonium bases. This conversion is carried out e.g. by reacting the compounds of formula I with the equimolar amount of a base and removing the solvent by evaporation.

Some of the starting materials of the formulae II, IV and VII are novel and can be prepared by the following methods.

The novel sulfonamides of formula II used as intermediates are obtained from the corresponding anilines by diazotisation and replacement of the diazo group, with sulfur dioxide, in the presence of a catalyst such as copper(I) chloride, in hydrochloride acid or acetic acid, and reacting the resultant phenylsulfonyl chloride with ammonium hydroxide solution.

The novel sulfonamides of formula II have been specially developed for the synthesis of compounds of formula I and constitute a further object of the invention.

The phenylsulfonylisocyanates of the formula IV can be obtained by reacting the sulfonamides of the formula II with phosgene, in the presence of butylisocyanate in a chlorinated hydrocarbon as solvent, at reflux temperature. Similar reactions are described in "Newer Methods of Preparative Organic Chemistry", Vol. VI, 223-241, Academic Press, New York and London.

The isothiocyanates of the formula IV are obtained by treating the sulfonamides of formula II with carbon disulfide and potassium hydroxide and by subsequent reaction of the dipotassium salt with phosgene. Such processes are described in Arch. Pharm. 299, 174 (1966).

The N-phenylsulfonylcarbamates of the formula VII are obtained by reacting the sulfonamides of the formula II with diphenyl carbonate in the presence of a base. Similar processes are described in Japanese patent specification No. 61 169.

The starting materials of the formulae III, V and VI are known or they can be prepared by known methods.

Isocyanates of the formula VI can be prepared by reacting amines of the formula V with oxalyl chloride in a chlorinated hydrocarbon as solvent. Amines of the formula V are known and some are commercially available, or they can be prepared by known methods, q.v. "The Chemistry of Heterocyclic Compounds", Vol. XIV, Interscience Publishers, New York, London.

It is expedient to carry out the reactions for obtaining compounds of formula I in aprotic, inert organic solvents such as methylene chloride, tetrahydrofurane, acetonitrile, dioxane or toluene.

The reaction temperatures are preferably in the range from -20° and +120° C. The reactions are normally slightly exothermic and can be carried out at room temperature. To shorten the reaction time or also to initiate the reaction it is expedient to heat the reaction mixture briefly to boiling point. The reaction times can also be shortened by addition of a few drops of a base or isocyanate as catalyst.

The final products can be isolated by concentrating the reaction mixture and/or removing the solvent by evaporation, and by recrystallization or by triturating the solid residue in solvents in which it is poorly soluble, such as ether, aromatic hydrocarbons or chlorinated hydrocarbons.

The compounds of formula I are stable compounds, and no protective measures are required for handling them.

The compounds of formula I have pronounced plant growth-regulating, especially plant growth-inhibiting, properties. The growth of both monocots and dicots is inhibited. Thus, for example, the compounds of formula I selectively inhibit the growth of leguminosae which are frequently planted as cover crops in tropical regions, so that, while soil erosion between cultivated plants is prevented, the cover crops cannot compete with the cultivated plants.

Further, the compounds of formula I are suitable for preventing stored potatoes from seeding. During winter storage, potatoes often develop sprouts which result in shrinkage, weight loss, and rot.

When the compounds of formula I are applied in higher rates of application, all tested plants are so damaged in their development that they wither. When used in lower rates of application, the compounds of formula I have good selective growth-inhibiting and selective herbicidal properties which make them most suitable for use in crops of useful plants, especially in cereals, cotton, soybeans, maize and rice. In some cases damage is also caused to weeds which have up to now have only been controlled with total herbicides.

The mode of action of these compounds is unusual. Many are translocatable, i.e. they are absorbed by the plant and transported to other parts of it where they then deploy their action. The unusual feature of the compounds is that they do not only take the path through the vascular bundle in the ligneous part from the roots to the leaves, but can also be translocated through the sieve tubes in the bast part of the leaves back into the roots. Thus, for example, it is possible to damage perennial weeds to the very roots by surface treatment. Compared with other herbicides and growth regulators, the novel compounds in the formula I are effective even when used in very low rates of application.

The invention also relates to herbicidal and plant growth-regulating compositions which contain a novel compound of the formula I, and also to methods of controlling weeds pre- and postemergence and of inhibiting the growth of monocots and dicots, especially grasses, tropical cover crops and tobacco plant suckers.

The compounds of the formula I are used in unmodified form or preferably together with the adjuvants conventionally employed in the art of formulation, and are therefore formulated in known manner to emulsifiable concentrates, directly sprayable or dilutable solutions, dilute emulsions, wettable powders, soluble powders, dusts, granulates, and also encapsulations in e.g. polymer substances. The methods of application, such as spraying, atomising, dusting, scattering or pouring, are chosen in accordance with the intended objectives and the prevailing circumstances, just like the nature of the compositions.

The formulations, i.e. the compositions or preparations containing the compound (active ingredient) of the formula I and, where appropriate, a solid or liquid adjuvant, are prepared in known manner, e.g. by homogeneously mixing and/or grinding the active ingredients with extenders, e.g. solvents, solid carriers and, where appropriate, surface-active compounds (surfactants).

Suitable solvents are: aromatic hydrocarbons, preferably the fractions containing 8 to 12 carbon atoms, e.g. xylene mixtures or substituted naphthalenes, phthalates such as dibutyl phthalate or dioctyl phthalate, aliphatic hydrocarbons such as cyclohexane or paraffins, alcohols and glycols and their ethers and esters, such as ethanol, ethylene glycol, ethylene glycol monomethyl or monoethyl ether, ketones such as cyclohexanone, strongly polar solvents such as N-methyl-2-pyrrolidone, dimethyl sulfoxide or dimethyl formamide, as well as epoxidised vegetable oils such as epoxidised coconut oil or soybean oil; or water.

The solid carriers used e.g. for dusts and dispersible powders are normally natural mineral fillers such as calcite, talcum, kaolin, montmorillonite or attapulgite. In order to improve the physical properties it is also possible to add highly dispersed silicic acid or highly dispersed absorbent polymers. Suitable granulated adsorptive carriers are porous types, for example pumice, broken brick, sepiolite or bentonite; and suitable nonsorbent carriers are materials such as calcite or sand. In addition, a great number of pregranulated materials of inorganic or organic nature can be used, e.g. especially dolomite or pulverised plant residues.

Depending on the nature of the compound of formula I to be formulated, suitable surface-active compounds are nonionic, cationic and/or anionic surfactants having good emulsifying, dispersing and wetting properties. The term "surfactants" will also be understood as comprising mixtures of surfactants.

Suitable anionic surfactants can be both water-soluble soaps and water-soluble synthetic surface-active compounds.

Suitable soaps are the alkali, alkaline earth or unsubstituted or substituted ammonium salts of higher fatty acids (C₁₀ -C₂₂), e.g. the sodium or potassium salts of oleic or stearic acid, or of natural fatty acid mixtures which can be obtained e.g. from coconut oil or tallow oil. Mention may also be made of fatty acid methyltaurin salts.

More frequently, however, so-called synthetic surfactants are used, especially fatty sulfonates, fatty sulfates, sulfonated benzimidazole derivatives or alkylarylsulfonates.

The fatty sulfonates or sulfates are usually in the form of alkali, alkaline earth or unsubstituted or substituted ammonium salts and contain a C₈ -C₂₂ alkyl radical which also includes the alkyl moiety of acyl radicals, e.g. the sodium or calcium salt of lignosulfonic acid, of dodecylsulfate or of a mixture of fatty alcohol sulfates obtained from natural fatty acids. These compounds also comprise the salts of sulfuric acid esters and sulfonic acids of fatty alcohol/ethylene oxide adducts. The sulfonated benzimidazole derivatives preferably contain 2 sulfonic acid groups and one fatty acid radical containing 8 to 22 carbon atoms. Examples of alkylarylsulfonates are the sodium, calcium or triethanolamine salts of dodecylbenzenesulfonic acid, dibutylnaphthalenesulfonic acid, or of a naphthalenesulfonic acid/formaldehyde condensation product. Also suitable are corresponding phosphates, e.g. salts of the phosphoric acid ester of an adduct of p-nonylphenol with 4 to 14 moles of ethylene oxide.

Non-ionic surfactants are preferably polyglycol ether derivatives of aliphatic or cycloaliphatic alcohols, or saturated or unsaturated fatty acids and alkylphenols, said derivatives containing 3 to 30 glycol ether groups and 8 to 20 carbon atoms in the (aliphatic) hydrocarbon moiety and 6 to 18 carbon atoms in the alkyl moiety of the alkylphenols.

Further suitable non-ionic surfactants are the water-soluble adducts of polyethylene oxide with polypropylene glycol, ethylenediaminopolypropylene glycol and alkylpolypropylene glycol containing 1 to 10 carbon atoms in the alkyl chain, which adducts contain 20 to 250 ethylene glycol ether groups and 10 to 100 propylene glycol ether groups. These compounds usually contain 1 to 5 ethylene glycol units per propylene glycol unit.

Representative examples of non-ionic surfactants are nonylphenol-polyethoxyethanols, castor oil polyglycol ethers, polypropylene/polyethylene oxide adducts, tributylphenoxypolyethoxyethanol, polyethylene glycol and octylphenoxypolyethoxyethanol. Fatty acid esters of polyoxyethylene sorbitan and polyoxyethylene sorbitan trioleate are also suitable non-ionic surfactants.

Cationic surfactants are preferably quaternary ammonium salts which contain, as N-substituent, at least one polyglycol ether or C₈ -C₂₂ alkyl radical and, as further substituents, lower unsubstituted or halogenated alkyl, benzyl or lower hydroxyalkyl radicals. The salts are preferably in the form of halides, methylsulfates or ethylsulfates, e.g. stearyltrimethylammonium chloride or benzyldi(2-chloroethyl)ethylammonium bromide.

The surfactants customarily employed in the art of formulation are described e.g. in the following publications: "McCutcheon's Detergents and Emulsifiers Annual", MC Publishing Corp., Ringwodd, N.J., 1979; Sisely and Wood, "Encyclopedia of Surface Active Agents", Chemical Publishing Co. Inc., New York, 1964.

The pesticidal formulations usually contain 0.1 to 95%, preferably 0.1 to 80%, of a compound of the formula I, 1 to 99.9% of a solid or liquid adjuvant, and 0 to 25%, preferably 0.1 to 25%, of a surfactant.

Preferred formulations are composed in particular of the following constituents (%=percentage of weight):

    ______________________________________                                         Solutions                                                                      active ingredient:                                                                            1 to 30%, preferably 5 to 20%                                   solvent:       99 to 0%, preferably 95 to 0%                                   surfactants:   0 to 99%, preferably 0 to 95%                                   Emulsifiable concentrates                                                      active ingredient:                                                                            1 to 20%, preferably 5 to 10%                                   surfactant:    5 to 30%, preferably 10 to 20%                                  liquid carrier:                                                                               50 to 94%, preferably 70 to 85%                                 Dusts                                                                          active ingredient:                                                                            0.1 to 10%, preferably 0.1 to 1%                                solid carrier: 99.9 to 90%, preferably 99.9 to 99%                             Suspension concentrates                                                        active ingredient:                                                                            5 to 75%, preferably 10 to 50%                                  water:         94 to 25%, preferably 90 to 30%                                 surfactant:    1 to 40%, preferably 2 to 30%                                   Wettable powders                                                               active ingredient:                                                                            0.5 to 90%, preferably 1 to 80%                                 surfactant:    0.5 to 20%, preferably 1 to 15%                                 solid carrier: 5 to 95%, preferably 15 to 90%                                  Granulates                                                                     active ingredient:                                                                            0.5 to 30%, preferably 3 to 15%                                 solid carrier: 99.5 to 70%, preferably 97 to 85%.                              ______________________________________                                    

Whereas commercial products will be preferably formulated as concentrates, the end user will normally employ dilute formulations. The formulations can be diluted to a concentration as low as 0.001%. The rates of application are normally 0.01 to 10 kg a.i./ha, preferably 0.025 to 5 kg a.i./ha.

The compositions can also contain further ingredients such as stabilisers,, antifoams, viscosity regulators, binders, adhesives, as well as fertilisers or other active compounds, in order to attain special effects.

PREPARATORY EXAMPLES Example 1

(a) 2-Difluoromethoxyphenylsulfonyl chloride

While cooling at 0° C., 101.2 g of a 40% solution of sodium hydrogen sulfite are added dropwise to a solution of 6.4 g of copper sulfate in 276 ml of 36% hydrochloric acid and 72 ml of water. To the resultant solution is then made the simultaneous dropwise addition of 101.2 g of a 40% solution of sodium hydrogen sulfite and a diazonium salt solution which has been cooled to -10° C. and obtained by the dropwise addition, with cooling, of 28.8 g of sodium nitrite in 44 ml of water to a solution of 39 ml of water, 84 ml of 36% hydrochloric acid and 63.7 g of 2-difluoromethoxyaniline. During this addition the temperature of the reaction mixture rises to 30° C., accompanied by the simultaneous evolution of gas. The reaction mixture is stirred for 18 hours, whereupon a brown oil precipitates. The organic phase is separated and the aqueous phase is extracted with methylene chloride. The organic phases are combined and evaporated to dryness, affording, as crude product, 80.3 g of 2-difluoromethoxysulfonyl chloride in the form of a brown oil.

(b) 2-Difluoromethoxyphenylsulfonamide

To a mixture of 250 ml of methylene chloride, 250 ml of water and 250 ml of 30% ammonia solution is slowly added a solution of 80.3 g of crude 2-difluoromethoxyphenylsulfonyl chloride in 50 ml of methylene chloride. After the exothermic reaction had subsided, the reaction mixture is refluxed for 2 hours. The organic phase is washed with water, dried over sodium sulfate, and evaporated to dryness. Recrystallisation from methanol yielded 40.5 g of 2-difluoromethoxyphenylsulfonamide with a melting point of 128°-130° C.

Example 2

(a) 2-Pentafluoroethoxysulfonyl chloride

While cooling at 0° C., 101.2 g of a 40% solution of sodium hydrogen sulfite are added dropwise to a solution of 6.4 g of copper sulfate in 276 ml of 36% hydrochloric acid and 72 ml of water. To the resultant solution is then made the simultaneous dropwise addition of 101.2 g of a 40% solution of sodium hydrogen sulfite and a diazonium salt solution which has been cooled to -10° C. and obtained by the dropwise addition, with cooling, of 28.8 g of sodium nitrite in 44 ml of water to a solution of 39 ml of water, 84 ml of 36% hydrochloric acid and 90.8 g of 2-pentafluoroethoxy-aniline. During this addition the temperature of the reaction mixture rises to 30° C., accompanied by the simultaneous evolution of gas. The reaction mixture is stirred for 18 hours, whereupon a brown oil precipitates. The organic phase is separated and the aqueous phase is extracted with methylene chloride. The organic phases are combined and evaporated to dryness, affording crude 2-pentafluoroethoxyphenylsulfonyl chloride in the form of a brown oil.

(b) 2-Pentafluoroethoxyphenylsulfonamide

To a mixture of 250 ml of methylene chloride, 250 ml of water and 250 ml of 30% ammonia solution is slowly added a solution of the crude 2-pentafluoroethoxyphenylsulfonyl chloride obtained in Example 2a, in 50 ml of methylene chloride. After the exothermic reaction has subsided, the reaction mixture is refluxed for 2 hours. The organic phase is washed with water, dried over sodium sulfate, and evaporated to dryness. Recrystallisation from methanol yields 65 g of 2-pentafluoroethoxyphenylsulfonamide with a melting point of 145°-146° C.

The following novel intermediates, specially developed for the synthesis of compounds of formula I, are obtained in analogous manner.

                                      TABLE 1                                      __________________________________________________________________________      ##STR9##                                                                                                    Position                                                                            Physical data                               R.sub.1 R.sub.2 X  A        m of XA                                                                               (°C.)                                __________________________________________________________________________     H       H       O  C.sub.2 F.sub.5                                                                         1 2    m.p. 145-146°                        6-COOCH.sub.2 CH.sub.3                                                                 H       O  CHF.sub.2                                                                               1 2                                                6-COOCH.sub.2 CH.sub.3                                                                 H       S  CHF.sub.2                                                                               1 2                                                6-COOCH.sub.3                                                                          H       SO CHF.sub.2                                                                               1 2                                                6-COOCH.sub.2 CH.sub.3                                                                 H       SO.sub.2                                                                          CHF.sub.2                                                                               1 2                                                6-Cl    5-Cl    O  CHF.sub.2                                                                               1 2                                                6-Cl    5-Cl    S  CHF.sub.2                                                                               1 2                                                6-Cl    5-Cl    SO CHF.sub.2                                                                               1 2                                                6-Cl    5-Cl    SO.sub.2                                                                          CHF.sub.2                                                                               1 2                                                H       5-CF.sub.3                                                                             O  CHF.sub.2                                                                               1 2                                                H       5-CF.sub.3                                                                             S  CHF.sub.2                                                                               1 2                                                H       5-CF.sub.3                                                                             SO CHF.sub.2                                                                               1 2                                                H       5-CF.sub.3                                                                             SO.sub.2                                                                          CHF.sub.2                                                                               1 2                                                H       H       O  CHF.sub.2                                                                               2 2.5                                              H       H       S  CHF.sub.2                                                                               2 2.5                                              H       H       SO CHF.sub.2                                                                               2 2.5                                              H       H       SO.sub.2                                                                          CHF.sub.2                                                                               2 2.5                                              H       6-NO.sub.2                                                                             O  CHF.sub.2                                                                               1 3                                                6-COOCH.sub.2 CH.sub.3                                                                 H       O  CF.sub.3 1 2                                                6-COOCH.sub.2 CH.sub.3                                                                 H       S  CF.sub.3 1 2                                                6-COOCH.sub.2 CH.sub.3                                                                 H       SO CF.sub.3 1 2                                                6-COOCH.sub.2 CH.sub.3                                                                 H       SO.sub.2                                                                          CF.sub.3 1 2                                                6-COOCH.sub.2 CH.sub.3                                                                 H       O  CF.sub.2 CHF.sub.2                                                                      1 2                                                6-COOCHCH.sub.3                                                                        H       S  CF.sub.2CHF.sub.2                                                                       1 2                                                6-COOCH.sub.2 CH.sub.3                                                                 H       SO CF.sub.2CHF.sub.2                                                                       1 2                                                6-COOCH.sub.2 CH.sub.3                                                                 H       SO.sub.2                                                                          CF.sub.2 CHF.sub.2                                                                      1 2                                                3-F     H       O  CH.sub.2 F                                                                              1 2                                                3-Br    H       O  CH.sub.2 F                                                                              1 2                                                5-Cl    H       O  CH.sub.2 F                                                                              1 2                                                H       6-OCH.sub.3                                                                            O  CH.sub.2 F                                                                              1 2                                                5-SCH   H       O  CH.sub.2 F                                                                              1 2                                                5-CH.sub.3                                                                             H       O  CH.sub.2 F                                                                              1 2                                                5-Br    H       O  CH.sub.2 F                                                                              1 2                                                H       6-F     O  CH.sub.2 F                                                                              1 2                                                5-NO.sub.2                                                                             H       O  CH.sub.2 F                                                                              1 2                                                5-SO.sub.2 CH.sub.3                                                                    H       O  CH.sub.2 F                                                                              1 2                                                H       H       S  C.sub.2 F.sub.5                                                                         1 2                                                H       H       SO C.sub.2 F.sub.5                                                                         1 2                                                H       H       SO.sub.2                                                                          C.sub.2 F.sub.5                                                                         1 2                                                H       5-F     O  CH.sub.2 F                                                                              1 2                                                6-F     H       O  C.sub.2 F.sub.5                                                                         1 2                                                H       5-F     O  C.sub.2 F.sub.5                                                                         1 2                                                H       6-COOCH.sub.2 CH.sub.3                                                                 O  CF.sub.3 1 3                                                H       6-COOCH.sub.2 CH.sub.3                                                                 S  CF.sub.3 1 3                                                H       6-COOCH.sub.2 CH.sub.3                                                                 SO CF.sub.3 1 3                                                H       6-COOCH.sub.2 CH.sub.3                                                                 SO.sub.2                                                                          CF.sub.3 1 3                                                H       H       O  CF.sub.2CF.sub.2 Cl                                                                     1 2                                                H       H       O  CF.sub.2CF.sub.2 Br                                                                     1 2                                                H       H       O  CH.sub.2CH.sub.2 F                                                                      1 2                                                H       H       S  CH.sub.2CH.sub.2 F                                                                      1 2                                                H       H       S  CF.sub.2CF.sub.2 Cl                                                                     1 2                                                H       H       O  CH.sub.2CCl.sub.3                                                                       1 2                                                H       H       O  CF.sub.2CH.sub. 3                                                                       1 2                                                H       H       S  CH.sub.2CCl.sub.3                                                                       1 2                                                H       H       O  CF.sub.2 Cl                                                                             1 2                                                H       H       SO CF.sub.2 Cl                                                                             1 2                                                H       H       SO.sub.2                                                                          CF.sub.2 Cl                                                                             1 2                                                H       H       O  CH.sub.2CH.sub.2 Cl                                                                     1 2    m.p. 110°                            H       H       S  CH.sub.2CH.sub.2 Cl                                                                     1 2                                                6-COOCH.sub.3                                                                          H       O  CHF.sub.2                                                                               1 2                                                6-NO.sub.2                                                                             H       O  CHF.sub.2                                                                               1 2                                                __________________________________________________________________________

Example 3

(a) N-(2-Difluoromethoxyphenylsulfonyl)phenylcarbamate

A solution of 4.5 g of 2-difluoromethoxyphenylsulfonamide in 5 ml of absolute dimethyl formamide is added dropwise to a suspension, cooled to 0°-10° C., of 0.84 g of 57.5% sodium hydride suspension in 5 ml of absolute dimethyl formamide. The evolution of hydrogen is brought to completion by warming the reaction mixture to 25° C., with stirring. When the evolution of hydrogen is complete and after cooling the mixture to -30° C., a solution of 4.7 g of diphenyl carbonate in 5 ml of absolute dimethyl formamide is added and the reaction mixture is subsequently stirred for 18 hours while warming it to 25° C. The reaction solution is then poured into a mixture of 11 ml of 2N hydrochloric acid and 100 g of ice, and the precipitate is taken up in ethyl acetate. The ethyl acetate phase is dried and concentrated, and the residue is recrystallised from methanol to give 5.6 g of N-(2-difluoromethoxyphenylsulfonyl)phenylcarbamate in the form of a colourless crystals with a melting point of 115°-117° C.

(b) N-(2-Difluoromethoxyphenylsulfonyl)-N'-(4-ethyl-6-methoxy-1,3,5-triazin-2-yl)urea

A solution of 5.4 g of N-(2-difluoromethoxyphenylsulfonyl)phenylcarbamate and 2.42 g of 2-amino-4-ethyl-6-methoxy-1,3,5-triazine in 60 ml of dioxane is refluxed for 5 hours and then poured into 600 ml of ice-water. The precipitate is taken up in ethyl acetate. The ethyl acetate phase is washed with water, dried and concentrated. The residual oil is dissolved in ethyl acetate and washed 5 times with saturated sodium bicarbonate solution. The combined aqueous phases are acidified with dilute hydrochloric acid and extracted with ethyl acetate. The ethyl acetate phase is dried and evaporated to dryness. Recrystallisation from methanol yields 5.1 g of N-(2-difluoromethoxyphenylsulfonyl)-N'-(4-ethyl-6-methoxy-1,3,5-triazin-2-yl)urea with a melting point of 114°-116° C.

Example 4

(a) N-(2-Difluoromethoxyphenylsulfonyl)-N-(4,6-dichloro-1,3,5-triazin-2-yl)ure

To a solution of 3.9 g of 4,6-dichloro-2-isocyanato-1,3,5-triazine in 50 ml of absolute dioxane are added 4.5 g of 2-difluoromethoxyphenylsulfonamide. The mixture is refluxed for 5 hours and then the clear solution obtained is poured into 500 ml of ice-water. The precipitate is extracted with ethyl acetate and the organic phase is dried and concentrated, yielding crystals of a 1:1 adduct of dioxane and N-(2-difluoromethoxyphenylsulfonyl)-N-(4,6-dichloro-1,3,5-triazin-2-yl)urea.

(b) N-(2-Difluoromethoxyphenylsulfonyl)-N'-(4,6-ethoxy-1,3,5-triazin-2-yl)urea

A solution of 1.9 g of sodium ethylate in 10 ml of absolute ethanol is added dropwise over 15 minutes to a solution of 5.5 g of the adduct of N-(2-difluoromethoxyphenylsulfonyl)-N'-(4,6-dichloro-1,3,5-triazin-2-yl)urea and dioxane obtained in Example 8a in 10 ml of absolute ethanol. The reaction mixture is refluxed for 2 hours, then evaporated to dryness. The residue is dissolved in 200 ml of ice-water and the solution is acidified with dilute hydrochloric acid, whereupon N-(2-difluoromethoxyphenylsulfonyl)-N'-(4,6-diethoxy-1,3,5-triazin-2-yl) urea precipitates in the form of colourless crystals with a melting point of 117°-118° C. Yield: 3.2 g.

Example 5

(a) N-(2-Pentafluoroethoxyphenylsulfonyl)-N'-methylurea

The 2-pentafluoroethoxyphenylsulfonamide obtained in Example 4b is suspended in 400 ml of methylene chloride. Then 16.3 g of methyl isocyanate are added and 28.2 g of triethylamine are subsequently added dropwise over 15 minutes to form a clear solution. The solution is evaporated to dryness, and the residue is dissolved in 5% sodium carbonate solution. N-(2-pentafluoroethoxyphenylsulfonyl)-N'-methylurea with a melting point of 177°-179° C., is precipitated from the solution by acidification with 10% hydrochloric acid. Yield: 74.6 g.

(b) 2-Pentafluoroethoxyphenylsulfonyl isocyanate

74.6 g of N-(2-pentafluoroethoxyphenylsulfonyl)-N'-methylurea are suspended in 1300 ml of chlorobenzene and made absolute by distilling off about 100 ml of solvent as an azeotrope. Then 48 g of phosgene are introduced at 120°-130° C. over 3 hours. The chlorobenzene is then completely distilled off, affording 65 g of 2-pentafluoroethoxyphenylsulfonyl isocyanate in the form of an almost colourless oil.

(c) N-(2-Pentafluoroethoxyphenylsulfonyl)-N'-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)urea

3.2 g of 2-pentafluoroethoxyphenylsulfonyl isocyanate and 1.4 g of 2-amino-4-methoxy-6-methyl-1,3,5-triazine are stirred in 40 ml of dioxane for 3 hours at 90°-100° C. The solution is then cooled to 20° C., filtered, and concentrated to about 1/4 of its volume. After addition of ether, 3.3 g of N-(2-pentafluoroethoxyphenylsulfonyl)-N'-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)urea crystallise from the residue. Melting point: 157°-159° C.

Example 6

N-(2-Difluoromethoxyphenylsulfonyl)-N'-(4-chloro-6-methylpyrimidin-2-yl)urea

In the same manner as described in Example 5c, reaction of N-(2-difluoromethoxyphenylsulfonyl)isocyanate with 2-amino-4-chloro-6-methylpyrimidine yields N-(2-difluoromethoxyphenylsulfonyl)-N'-(4-chloro-6-methylpyrimidin-2-yl)urea with a melting point of 190°-191° C.

The compounds of formula I listed in the following tables are prepared in similar manner.

                                      TABLE 2                                      __________________________________________________________________________      ##STR10##                                                                                                             Physical data                          No. A            E   R.sub.3 R.sub.4 X  (°C.)                           __________________________________________________________________________     1   CHF.sub.2    N   OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       O  m.p. 117-118°                   2   CHF.sub.2    CH  OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       O  m.p. 146-152°                   3   CHF.sub.2    N   CH.sub.3                                                                               n-OC.sub.4 H.sub.9                                                                     O  sinters from                                                                   100°                            4   CF.sub.3     N   OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       O                                         5   CF.sub.3     CH  OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       O                                         6   CF.sub.3     N   CH.sub.3                                                                               n-OC.sub.4 H.sub.9                                                                     0                                         7   CF.sub.2 CHF.sub.2                                                                          N   OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       O  m.p. 103-106°                   8   CF.sub.2CHF.sub.2                                                                           CH  OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       O                                         9   CF.sub.2CHF.sub.2                                                                           N   CH.sub.3                                                                               C.sub.2 H.sub.5                                                                        O  m.p. 147-148°                   10  CF.sub.2 CHFCl                                                                              N   OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       O  m.p. 129-131°                   11  CF.sub.2CHFCl                                                                               CH  OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       O                                         12  CF.sub.2CHFCl                                                                               N   CH.sub.3                                                                               OC.sub.4 H.sub.9                                                                       O                                         13  CF.sub.2CHFBr                                                                               N   OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       O                                         14  CF.sub.2CHFBr                                                                               CH  OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       O                                         15  CF.sub.2 CHFBr                                                                              N   CH.sub.3                                                                               OC.sub.4 H.sub.9                                                                       O                                         16  CHF.sub.2    N   CCl.sub.3                                                                              CCl.sub.3                                                                              O  m.p. 137-145°                   17  C.sub.2 F.sub.5                                                                             N   OCH.sub.3                                                                              OCH.sub.3                                                                              O  m.p. 185-187°                   18  CF.sub.2CClF.sub.2                                                                          N   OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         19  CHF.sub.2    N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O  m.p. 114-116°                   20  CHF.sub.2    N   C.sub.2 H.sub.5                                                                        OC.sub.2 H.sub.5                                                                       O                                         21  CHF.sub.2    N   C.sub.2 H.sub.5                                                                        n-OC.sub.3 H.sub.7                                                                     O                                         22  CHF.sub.2    N   C.sub.2 H.sub.5                                                                        n-OC.sub.4 H.sub.9                                                                     O                                         23  C.sub.2 F.sub.5                                                                             N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O  m.p. 153-154°                   24  C.sub.2 F.sub.5                                                                             N   CH.sub.3                                                                               OCH.sub.3                                                                              O  m.p. 145-149°                   25  C.sub.2 F.sub.5                                                                             N   CH.sub.3                                                                               OC.sub.2 H.sub.5                                                                       O                                         26  C.sub.2 F.sub.5                                                                             N   OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       O                                         27  C.sub.2 F.sub.5                                                                             CH  CH.sub.3                                                                               CH.sub.3                                                                               O  m.p. 173-175°                   28  C.sub.2 F.sub.5                                                                             CH  C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O                                         29  C.sub.2 F.sub.5                                                                             CH  CH.sub.3                                                                               OCH.sub.3                                                                              O  m.p. 165-170°                   30  C.sub.2 F.sub.5                                                                             CH  OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         31  C.sub.2 F.sub.5                                                                             N   CH.sub.3                                                                               CH.sub.3                                                                               O                                         32  CHF.sub.2    N   Cl      Cl      O  m.p. 105-107°                                                           with 1 mole                                                                    of dioxane                             33  CF.sub.2CHFBr                                                                               N   CH.sub.3                                                                               n-OC.sub.4 H.sub. 9                                                                    S                                         34  CF.sub.2CF.sub.2 Cl                                                                         N   OCH.sub.3                                                                              OCH.sub.3                                                                              S                                         35  CF.sub.2CBrF.sub.2                                                                          N   OCH.sub.3                                                                              OCH.sub.3                                                                              S                                         36  CHF.sub.2    N   CCl.sub.3                                                                              CCl.sub.3                                                                              S                                         37  CHF.sub.2    N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              S  m.p. 146-147°                   38  CHF.sub.2    N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              SO                                        39  CHF.sub.2    N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              SO.sub.2                                  40  C.sub.2 F.sub.5                                                                             N   OCH.sub.3                                                                              OCH.sub.3                                                                              S                                         41  CHF.sub.2    N   OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       S                                         42  CHF.sub.2    N   CH.sub.3                                                                               n-OC.sub.4 H.sub.9                                                                     S                                         43  CHF.sub.2    CH  OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       S                                         44  CHF.sub.2    N   OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       SO                                        45  CHF.sub.2    CH  OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       SO                                        46  CHF.sub.2    N   OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       SO.sub.2                                  47  CHF.sub.2    CH  OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       SO.sub.2                                  48  CHF.sub.2    N   CH.sub.3                                                                               n-OC.sub.4 H.sub.9                                                                     SO.sub.2                                  49  CF.sub.3     N   OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       S                                         30  CF.sub.3     CH  OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       S                                         51  CF.sub.3     N   CH.sub.3                                                                               OC.sub.4 H.sub.9                                                                       S                                         52  CF.sub.2CHF.sub.2                                                                           N   OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       S                                         53  CF.sub.2CHF.sub.2                                                                           CH  OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       S                                         54  CF.sub.2CHF.sub.2                                                                           N   CH.sub.3                                                                               n-OC.sub.4 H.sub.9                                                                     S                                         55  CF.sub.2CHFCl                                                                               N   OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       S                                         56  CF.sub.2CHFCl                                                                               CH  OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       S                                         57  CF.sub.2CHFCl                                                                               N   CH.sub.3                                                                               n-OC.sub.4 H.sub.9                                                                     S                                         58  CFCHFBr      N   OCH.sub.2 CH.sub.3                                                                     OCH.sub.2 CH.sub.3                                                                     S                                         59  CF.sub.2CHFBr                                                                               CH  OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       S                                         60  C.sub.2 F.sub.5                                                                             CH  CH.sub.3                                                                               Cl      O                                         61  C.sub.2 F.sub.5                                                                             N   OCH.sub.3                                                                              Cl      O                                         62  C.sub.2 F.sub.5                                                                             CH  CH.sub.3                                                                               F       O                                         63  C.sub.2 F.sub.5                                                                             N   OCH.sub.3                                                                              OCH.sub.3                                                                              O  m.p. 185-187°                   64  C.sub.2 F.sub.5                                                                             N   OCH.sub.3                                                                              OC.sub.2 H.sub.5                                                                       O                                         65  C.sub.2 F.sub.5                                                                             N   CH.sub.2 Cl                                                                            OCH.sub.3                                                                              O                                         66  C.sub.2 F.sub.5                                                                             N   CH(CH.sub.3).sub.2                                                                     OCH.sub.3                                                                              O                                         67  C.sub.2 F.sub.5                                                                             N   C.sub.2 H.sub.5                                                                        Cl      O                                         68  C.sub.2 F.sub.5                                                                             N   C.sub.2 H.sub.5                                                                        CH.sub.3                                                                               O                                         69  C.sub.2 F.sub.5                                                                             N   CH.sub.2 OCH.sub.3                                                                     OCH.sub.3                                                                              O                                         70  C.sub.2 F.sub.5                                                                             CH  CH.sub.2 OCH.sub.3                                                                     OCH.sub.3                                                                              O                                         71  C.sub.2 F.sub.5                                                                             N   OCH.sub.3                                                                              OCH(CH.sub.3).sub.2                                                                    O                                         72  C.sub.2 F.sub.5                                                                             N   OCH.sub.3                                                                              SCH.sub.3                                                                              O                                         73  C.sub.2 F.sub.5                                                                             N   CH.sub.3                                                                               OCH.sub.3                                                                              S                                         74  C.sub.2 F.sub.5                                                                             CH  CH.sub.3                                                                               OCH.sub.3                                                                              S                                         75  C.sub.2 F.sub.5                                                                             N   OCH.sub.3                                                                              OCH.sub.3                                                                              S                                         76  CF.sub.2 Br  N   CH.sub.3                                                                               OCH.sub.3                                                                              S                                         77  CF.sub.2 Br  N   OCH.sub.3                                                                              OCH.sub.3                                                                              S                                         78  CF.sub.2 Br  CH  CH.sub.3                                                                               OCH.sub.3                                                                              S                                         79  CF.sub.2 Br  CH  OCH.sub.3                                                                              OCH.sub.3                                                                              S                                         80  CF.sub.2 Br  CH  CH.sub.3                                                                               CH.sub.3                                                                               S                                         81  CF.sub.2 Br  N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              S                                         82  CF.sub.2 Br  N   CH.sub.3                                                                               OCH.sub.3                                                                              O                                         83  CF.sub.2 Br  N   OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         84  CF.sub.2 Br  N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O                                         85  CF.sub.2 Br  CH  CH.sub.3                                                                               OCH.sub.3                                                                              O                                         86  CF.sub.2 Br  CH  OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         87  CF.sub.3     CH  CH.sub.3                                                                               Cl      O                                         88  CF.sub.3     N   OCH.sub.3                                                                              OCH(CH.sub.3).sub.2                                                                    O                                         89  CF.sub.3     N   Cl      OCH.sub.3                                                                              O                                         90  CF.sub.3     N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O                                         91  CF.sub.3     N   CH(CH.sub.3).sub.2                                                                     OCH.sub.3                                                                              O                                         92  CF.sub.3     N   OCH(CH.sub.3).sub.2                                                                    OCH.sub.3                                                                              O                                         93  CH.sub.2CF.sub.3                                                                            CH  CH.sub.3                                                                               Cl      O                                         94  CH.sub.2CF.sub.3                                                                            N   OCH.sub.3                                                                              Cl      O                                         95  CF.sub.2 Cl  CH  CH(CH.sub.3).sub.2                                                                     OCH.sub.3                                                                              O                                         96  CF.sub.2 Cl  CH  OCH.sub.3                                                                              SC.sub.2 H.sub.5                                                                       O                                         97  CF.sub.2 Cl  N   OCH.sub.3                                                                              SC.sub.2 H.sub.5                                                                       O                                         98  CF.sub.2 Cl  N   OCH.sub.3                                                                              SCH(CH.sub.3).sub.2                                                                    O                                         99  CF.sub.2 Cl  N   CCl.sub.3                                                                              CH.sub.3                                                                               O                                         100 CF.sub.2 Cl  N   CH.sub.3                                                                               Br      O                                         101 CF.sub.2 Cl  N   CHF.sub.2                                                                              OCH.sub.3                                                                              O                                         102 CF.sub.2 Cl  N   CHF.sub.2                                                                              CH.sub.3                                                                               O                                         103 CF.sub.2 Cl  N   CH.sub.2 CF.sub.3                                                                      Cl      O                                         104 CF.sub.2 Cl  N   CH.sub.2 CF.sub.3                                                                      OCH.sub.3                                                                              O                                         105 CF.sub.2 Cl  N   CH.sub.2 CF.sub.3                                                                      CH.sub.3                                                                               O                                         106 CF.sub.2 Cl  N   OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       O                                         107 CF.sub.2 Cl  CH  OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       O                                         108 CF.sub.2 Cl  N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O                                         109 CF.sub.2 Cl  N   C.sub.2 H.sub.5                                                                        OC.sub.2 H.sub.5                                                                       O                                         110 CF.sub.2 Cl  N   CH.sub.3                                                                               OCH.sub.3                                                                              O                                         111 CF.sub.2 Cl  N   CH.sub.3                                                                               OC.sub.2 H.sub.5                                                                       O                                         112 CF.sub.2 Cl  CH  CH.sub.3                                                                               CH.sub.3                                                                               O                                         113 CF.sub.2 Cl  CH  CH.sub.3                                                                               OCH.sub.3                                                                              O                                         114 CF.sub.2 Cl  N   CH.sub.3                                                                               Br      O                                         115 CF.sub.2 Cl  N   CH.sub.3                                                                               H       O                                         116 CF.sub.2 Cl  CH  C.sub.2 H.sub.5                                                                        Cl      O                                         117 CF.sub.2 Cl  CH  CH.sub.3                                                                               Cl      O                                         118 CF.sub.2 Cl  CH  CH.sub.3                                                                               SCH.sub.3                                                                              O                                         119 CF.sub.2 Cl  CH  CH.sub.3                                                                               F       O                                         120 CF.sub.2 Cl  CH  CH.sub.3                                                                               Br      O                                         121 CF.sub.2 Cl  CH  OC.sub.2 H.sub.5                                                                       O                                                 122 CF.sub.2 Cl  CH  C.sub.2 H.sub.5                                                                        SCH.sub.3                                                                              O                                         123 CF.sub.2 Cl  CH  CF.sub.3                                                                               CH.sub.3                                                                               O                                         124 CF.sub.2 Cl  CH  CH.sub.2 Cl                                                                            CH.sub.3                                                                               O                                         125 CH.sub.2 Cl  CH  CH.sub.2 Cl                                                                            OCH.sub.3                                                                              O                                         126 CF.sub.2 Cl  CH  OCH.sub.3                                                                              Cl      O                                         127 CF.sub.2 Cl  CH  Cl      Cl      O                                         128 CF.sub.2 Cl  CH  OCH.sub.3                                                                              SCH.sub.3                                                                              O                                         129 CF.sub.2 Cl  CH  OCH.sub.3                                                                              OCH(CH.sub.3).sub.2                                                                    O                                         130 CF.sub.2 Cl  CH  CH.sub.2 F                                                                             CH.sub.2 F                                                                             OCH.sub.3                                                                         O                                      131 CF.sub.2 Cl  CH  CH.sub.2 F                                                                             CH.sub.3                                                                               O                                         132 CF.sub.2 Cl  CH  CF.sub.3                                                                               OCH.sub.3                                                                              O                                         133 CF.sub.2 Cl  N   C.sub.2 H.sub.5                                                                        OCH(CH.sub.3).sub.2                                                                    O                                         134 CF.sub.2 Cl  N   C.sub.2 H.sub.5                                                                        Cl      O                                         135 CF.sub.2 Cl  N   C.sub.2 H.sub.5                                                                        SCH.sub.3                                                                              O                                         136 CF.sub.2 Cl  N   C.sub.2 H.sub. 5                                                                       CH.sub.3                                                                               O                                         137 CF.sub.2 Cl  N   C.sub.2 H.sub.5                                                                        C.sub.2 H.sub.5                                                                        O                                         138 CF.sub.2 Cl  N   OCH.sub.3                                                                              OCH(CH.sub.3).sub.2                                                                    O                                         139 CF.sub.2 Cl  N   OCH.sub.3                                                                               ##STR11##                                                                             O                                           140                                                                              CF.sub.2 Cl  N   CH.sub.3                                                                               CH(CH.sub.3).sub.2                                                                     O                                         141 CF.sub.2 Cl  N   CH(CH.sub.3).sub.2                                                                     Cl      O                                         142 CF.sub.2 Cl  N   CH(CH.sub.3).sub.2                                                                     OCH.sub.3                                                                              O                                         143 CF.sub.2 Cl  N   CH(CH.sub.3).sub.2                                                                     OC.sub.2 H.sub.5                                                                       O                                         144 CF.sub.2 Cl  N   CH(Ch.sub.3).sub.2                                                                     SCH.sub.3                                                                              O                                         145 CF.sub.2 Cl  N   CH.sub.2 Cl                                                                            CH.sub.3                                                                               O                                         146 CF.sub.2 Cl  N   CH.sub.2 Cl                                                                            OCH.sub.3                                                                              O                                         147 CF.sub.2 Cl  N   CH.sub.2 F                                                                             CH.sub.3                                                                               O                                         148 CF.sub.2 Cl  N   CH.sub.2 F                                                                             OCH.sub.3                                                                              O                                         149 CF.sub.2 Cl  N   CH.sub.2 F                                                                             OC.sub.2 H.sub.5                                                                       O                                         150 CF.sub.2 Cl  N   CH.sub.2 OCH.sub.3                                                                     C.sub.2 H.sub.5                                                                        O                                         151 CF.sub.2 Cl  N   CH.sub.2 SCH.sub.3                                                                     OCH.sub.3                                                                              O                                         152 CF.sub.2 Cl  N   CH.sub.2 SCH.sub.3                                                                     CH.sub.3                                                                               O                                         153 CF.sub.2 Cl  N   CH.sub.2 SCH.sub.3                                                                     SCH.sub.3                                                                              O                                         154 CF.sub.2 Cl  N   CH.sub.2 SCH.sub.3                                                                     Cl      O                                         155 CF.sub.2 Cl  N   CH.sub.2 SCH.sub.3                                                                     OC.sub.2 H.sub.5                                                                       O                                         156 CF.sub.2 Cl  N   SCH.sub.3                                                                              Cl      O                                         157 CF.sub.2 Cl  N   SCH.sub.3                                                                              OCH.sub.3                                                                              O                                         158 CF.sub.2 Cl  N   SCH.sub.3                                                                              OC.sub.2 H.sub.5                                                                       O                                         159 CF.sub.2 Cl  N   SCH.sub.3                                                                              OCH(CH.sub.3).sub.2                                                                    O                                         160 CF.sub.2 Cl  N   OCH(CH.sub.3).sub.2                                                                    Cl      O                                         161 CF.sub.2 Cl  N   CF.sub.3                                                                               OCH.sub.3                                                                              O                                         162 CF.sub.2 Cl  N   CF.sub.3                                                                               CH.sub.3                                                                               O                                         163 CF.sub.2 Cl  N   CF.sub.3                                                                               OC.sub.2 H.sub.5                                                                       O                                         164 CF.sub.2 Cl  N   CCl.sub.3                                                                              OCH.sub.3                                                                              O                                         165 CF.sub.2 Cl  N   CCl.sub.3                                                                              SCH.sub.3                                                                              O                                         166 CF.sub.2 Cl  N   CH.sub.3                                                                               Cl      O                                         167 CF.sub.2 Cl  N   OCH.sub.3                                                                              Cl      O                                         168 CF.sub.2 Cl  N   OCH.sub.3                                                                              F       O                                         169 CF.sub.2 Cl  N   OCH.sub.3                                                                              Br      O                                         170 CF.sub.2 Cl  N   CH.sub.3                                                                               F       O                                         171 CF.sub.2 Cl  CH  OCH.sub.3                                                                              S                                                 172 CF.sub.2 Cl  N   CH.sub.3                                                                               S                                                 173 CF.sub.2 Cl  N   OCH.sub.3                                                                              OC.sub.2 H.sub.5                                                                       S                                         174 CF.sub.2 Cl  CH  CH.sub.2OCH.sub.3                                                                      OCH.sub.3                                                                              S                                         175 CF.sub.2 Cl  N   OCH.sub.3                                                                              OCH.sub.3                                                                              S                                         176 CF.sub.2 Cl  CH  C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              S                                         177 CF.sub.2 Cl  N   C.sub.2 H.sub.5                                                                        CH.sub.3                                                                               S                                         178 CF.sub.2 Cl  N   CH.sub.3                                                                               OCH.sub.3                                                                              SO                                        179 CF.sub.2 Cl  N   OCH.sub.3                                                                              OCH.sub.3                                                                              SO                                        180 CF.sub.2 Cl  CH  CH.sub.3                                                                               OCH.sub.3                                                                              SO                                        181 CF.sub.2 Cl  CH  OCH.sub.3                                                                              OCH.sub.3                                                                              SO                                        182 CF.sub.2 Cl  N   CH.sub.3                                                                               OCH.sub.3                                                                              SO.sub.2                                  183 CF.sub.2 Cl  N   CH.sub.3                                                                               CH.sub.3                                                                               SO.sub.2                                  184 CF.sub.2 Cl  N   OCH.sub.3                                                                              OCH.sub.3                                                                              SO.sub.2                                  185 CF.sub.2 Cl  CH  CH.sub.3                                                                               OCH.sub.3                                                                              SO.sub.2                                  186 CF.sub.2 Cl  CH  CH.sub.3                                                                               CH.sub.3                                                                               SO.sub.2                                  187 CF.sub.2 Cl  OCH.sub.3                                                                          OCH.sub.3                                                                              SO.sub.2                                          188 CF.sub.2CF.sub.3                                                                            N   OCH.sub.3                                                                               OCH(CH.sub.3).sub.2                                                                   O                                         189 CF.sub.2CF.sub.3                                                                            N   Cl      OCH(CH.sub.3).sub.2                                                                    O                                         190 CF.sub.2 Cl  N   SCH.sub.3                                                                              OCH.sub.3                                                                              S                                         191 CF.sub.2 Cl  N   CF.sub.3                                                                               OCH.sub.3                                                                              S                                         192 CF.sub.2 Cl  N   CH.sub.3                                                                               Cl      S                                         193 CF.sub.2 Cl  N   OCH.sub.3                                                                              Cl      S                                         194 CF.sub.2 Cl  N   C.sub.2 H.sub.5                                                                        CH.sub.3                                                                               S                                         195 CF.sub.2 Cl  N   OCH.sub.3                                                                              OCH(CH.sub.3).sub.2                                                                    S                                         196 CF.sub.2 Cl  N   CH(CH.sub.3).sub.2                                                                     OCH.sub.3                                                                              S                                         197 CF.sub.2 Cl  N   CH.sub.2 Cl                                                                            OCH.sub.3                                                                              S                                         198 CF.sub.2 Cl  N   CH.sub.2 F                                                                             OCH.sub.3                                                                              S                                         199 CF.sub.2 Cl  CH  C.sub.2 H.sub.5                                                                        Cl      S                                         200 CF.sub.2 Cl  CH  CH.sub.3                                                                               Cl      S                                         201 CF.sub.2 Cl  CH  CH.sub.3                                                                               F       S                                         202 CF.sub.2 Cl  CH  OCH.sub.3                                                                              Cl      S                                         203 CF.sub.2 Cl  N   OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       S                                         204 CF.sub.2 Cl  N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              S                                         205 CF.sub.2 Cl  N   CH.sub.3                                                                               OCH.sub.3                                                                              S                                         206 CF.sub.2 Cl  N   CH.sub.3                                                                               OC.sub.2 H.sub.5                                                                       S                                         207 CF.sub.2 Cl  CH  CH.sub.3                                                                               CH.sub.3                                                                               S                                         208 CF.sub.2 Cl  CH  CH.sub.3                                                                               OCH.sub.3                                                                              S                                         209 CF.sub.2 Cl  CH.sub.3                                                                           OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         210 CF.sub.2 Cl  N   CH.sub.3                                                                               CH.sub.3                                                                               O                                         211 CF.sub.2 Cl  N   OCH.sub.3                                                                              OC.sub.2 H.sub.5                                                                       O                                         212 CF.sub.2 Cl  CH  OCH.sub.3                                                                              OC.sub.2 H.sub.5                                                                       O                                         213 CF.sub.2 Cl  CH  CH.sub.2OCH.sub.3                                                                      OCH.sub.3                                                                              O                                         214 CF.sub.2 Cl  N   CH.sub.2OCH.sub.3                                                                      OCH.sub.3                                                                              O                                         215 CF.sub.2 Cl  N   OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         216 CF.sub.2 Cl  CH  C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O                                         217 CF.sub.2 Cl  N   CH.sub.2 OCH.sub.3                                                                     CH.sub.3                                                                               O                                         218 CHF.sub.2    CH  CH(CH.sub.3).sub.2                                                                     OCH.sub.3                                                                              S                                         219 CHF.sub.2    CH  OCH.sub.3                                                                              SC.sub.2 H.sub.5                                                                       S                                         220 CHF.sub.2    N   OCH.sub.3                                                                              SC.sub.2 H.sub.5                                                                       S                                         221 CHF.sub.2    N   OCH.sub.3                                                                              SCH(CH.sub.3).sub.2                                                                    S                                         222 CHF.sub.2    N   CCl.sub.3                                                                              CH.sub.3                                                                               S                                         223 CHF.sub.2    N   CH.sub.3                                                                               Br      S                                         224 CHF.sub.2    N   CHF.sub.2                                                                              OCH.sub.3                                                                              S                                         225 CHF.sub.2    N   CHF.sub.2                                                                              CH.sub.3                                                                               S                                         226 CHF.sub.2    N   CH.sub.2 CF.sub.3                                                                      Cl      S                                         227 CHF.sub.2    N   CH.sub.2CF.sub.3                                                                       OCH.sub.3                                                                              S                                         228 CHF.sub.2    N   CH.sub.2CF.sub.3                                                                       CH.sub.3                                                                               S                                         229 CHF.sub.2    N   CH.sub.2OCH.sub.3                                                                      CH.sub.3                                                                               S                                         230 CHF.sub.2    N   CH.sub.2SCH.sub.3                                                                      CH.sub.3                                                                               S                                         231 CHF.sub.2    N   CH.sub.2SCH.sub.3                                                                      SCH.sub.3                                                                              S                                         232 CHF.sub.2    N   CH.sub.2SCH.sub.3                                                                      Cl      S                                         233 CHF.sub.2    N   CH.sub.2SCH.sub.3                                                                      OC.sub.2 H.sub.5                                                                       S                                         234 CHF.sub.2    N   SCH.sub.3                                                                              Cl      S  m.p. 162-163°                   235 CHF.sub.2    N   SCH.sub.3                                                                              OCH.sub.3                                                                              S  m.p. 159-161°                   236 CHF.sub.2    N   SCH.sub.3                                                                              OC.sub.2 H.sub.5                                                                       S                                         237 CHF.sub.2    N   SCH.sub.3                                                                              OCH(CH.sub.3).sub.2                                                                    S                                         238 CHF.sub.2    N   OCH(CH.sub.3).sub.2                                                                    Cl      S  m.p. 147-149°                   239 CHF.sub.2    N   CF.sub.3                                                                               OCH.sub.3                                                                              S                                         240 CHF.sub.2    N   CF.sub.3                                                                               CH.sub.3                                                                               S                                         241 CHF.sub.2    N   CF.sub.3                                                                               OC.sub.2 H.sub.5                                                                       S                                         242 CHF.sub. 2   N   CCl.sub.3                                                                              OCH.sub.3                                                                              S                                         243 CHF.sub.2    N   CCl.sub.3                                                                              SCH.sub.3                                                                              S                                         244 CHF.sub.2    N   CH.sub.3                                                                               Cl      S                                         245 CHF.sub.2    N   OCH.sub.3                                                                              Cl      S                                         246 CHF.sub.2    N   OCH.sub.3                                                                              F       S                                         247 CHF.sub.2    N   OCH.sub.3                                                                              Br      S                                         248 CHF.sub.2    N   CH.sub.3                                                                               F       S                                         249 CHF.sub.2    N   CH.sub.3                                                                               Br      S                                         250 CHF.sub.2    N   CH.sub.3                                                                               H       S                                         251 CHF.sub.2    CH  C.sub.2 H.sub.5                                                                        Cl      S                                         252 CHF.sub.2    CH  CH.sub.3                                                                               Cl      S  m.p. 194-195°                   253 CHF.sub.2    CH  CH.sub.3                                                                               SCH.sub.3                                                                              S                                         254 CHF.sub.2    CH  CH.sub.3                                                                               F       S  m.p. 186-187°                   255 CHF.sub.2    CH  CH.sub.3                                                                               Br      S                                         256 CHF.sub.2    CH  C.sub.2 H.sub.5                                                                        OC.sub.2 H.sub.5                                                                       S                                         257 CHF.sub.2    CH  C.sub.2 H.sub.5                                                                        SCH.sub.3                                                                              S                                         258 CHF.sub.2    CH.sub.2                                                                           CF.sub.3                                                                               CH.sub.3                                                                               S                                         259 CHF.sub.2    CH  CH.sub.2 Cl                                                                            CH.sub.3                                                                               S                                         260 CHF.sub.2    CH  CH.sub.2 Cl                                                                            OCH.sub.3                                                                              S                                         261 CHF.sub.2    CH  OCH.sub.3                                                                              Cl      S  m.p. 159-164°                   262 CHF.sub.2    CH  Cl      Cl      S  m.p. 201-202°                   263 CHF.sub.2    CH  OCH.sub.3                                                                              SCH.sub.3                                                                              S                                         264 CHF.sub.2    CH  OCH.sub.3                                                                              OCH(CH.sub.3).sub.2                                                                    S                                         265 CHF.sub.2    CH  CH.sub.2 F                                                                             OCH.sub.3                                                                              S                                         266 CHF.sub.2    CH  CH.sub.2 F                                                                             CH.sub.3                                                                               S                                         267 CHF.sub.2    CH  CF.sub.3                                                                               OCH.sub.3                                                                              S                                         268 CHF.sub.2    N   C.sub.2 H.sub.5                                                                        OCH(CH.sub.3).sub.2                                                                    S                                         269 CHF.sub.2    N   C.sub.2 H.sub.5                                                                        Cl      S  m.p. 163-164°                   270 CHF.sub.2    N   C.sub.2 H.sub.5                                                                        SCH.sub.3                                                                              S                                         271 CHF.sub.2    N   C.sub.2 H.sub.5                                                                        CH.sub.3                                                                               S  m.p. 166-167°                   272 CHF.sub.2    N   C.sub.2 H.sub.5                                                                        C.sub.2 H.sub.5                                                                        S                                         273 CHF.sub.2    N   OCH.sub.3                                                                              OCH(CH.sub.3).sub.2                                                                    S  m.p. 120-122°                   274 CHF.sub.2    N   OCH.sub.3                                                                               ##STR12##                                                                             S                                           275                                                                              CHF.sub.2    N   CH.sub.3                                                                               CH(CH.sub.3).sub.2                                                                     S                                         276 CHF.sub.2    N   CH(CH.sub.3).sub.2                                                                     Cl      S  m.p. 169-170°                   277 CHF.sub.2    N   CH(CH.sub.3).sub.2                                                                     OCH.sub.3                                                                              S  m.p. 148-150°                   278 CHF.sub.2    N   CH(CH.sub.3).sub.2                                                                     OC.sub.2 H.sub.5                                                                       S                                         279 CHF.sub.2    N   CH(CH.sub.3).sub.2                                                                     SCH.sub.3                                                                              S                                         280 CHF.sub.2    N   CH.sub.2 Cl                                                                            CH.sub.3                                                                               S                                         281 CHF.sub.2    N   CH.sub.2 Cl                                                                            OCH.sub.3                                                                              S                                         282 CHF.sub.2    N   CH.sub.2 F                                                                             CH.sub.3                                                                               S                                         283 CHF.sub.2    N   CH.sub.2 F                                                                             OCH.sub.3                                                                              S                                         284 CHF.sub.2    N   CH.sub.2 F                                                                             OCH.sub.2 H.sub.5                                                                      S                                         285 CHF.sub.2    N   CH.sub.2OCH.sub.3                                                                      C.sub.2 H.sub.5                                                                        S                                         286 CHF.sub.2    N   CH.sub.2SCH.sub.3                                                                      OCH.sub.3                                                                              S                                         287 CHF.sub.2    CH  CH(CH.sub.3).sub.2                                                                     OCH.sub.3                                                                              O                                         288 CHF.sub.2    CH  OCH.sub.3                                                                              SC.sub.2 H.sub.5                                                                       O                                         289 CHF.sub.2    N   OCH.sub.3                                                                              SC.sub.2 H.sub.5                                                                       O                                         290 CHF.sub.2    N   OCH.sub.3                                                                              SCH(CH.sub.3).sub.2                                                                    O                                         291 CHF.sub.2    N   CCl.sub.3                                                                              CH.sub.3                                                                               O                                         292 CHF.sub.2    N   CH.sub.3                                                                               Br      O                                         293 CHF.sub.2    N   CHF.sub.2                                                                              OCH.sub.3                                                                              O                                         294 CHF.sub.2    N   CHF.sub.2                                                                              CH.sub.3                                                                               O                                         295 CHF.sub.2    N   CH.sub.2CF.sub.3                                                                       Cl      O                                         296 CHF.sub.2    N   CH.sub.2CF.sub. 3                                                                      OCH.sub.3                                                                              O                                         297 CHF.sub.2    N   CH.sub.2CF.sub.3                                                                       CH.sub.3                                                                               O                                         298 CHF.sub.2    N   CH.sub.2OCH.sub.3                                                                      CH.sub.3                                                                               O                                         299 CHF.sub.2    N   CH.sub.3                                                                               Br      O                                         300 CHF.sub.2    N   CH.sub.3                                                                               H       O                                         301 CHF.sub.2    CH  C.sub.2 H.sub.5                                                                        Cl      O                                         302 CHF.sub.2    CH  CH.sub.3                                                                               Cl      O  m.p. 190-191°                   303 CHF.sub.2    CH  CH.sub.3                                                                               SCH.sub.3                                                                              O  m.p. 171-172°                   304 CHF.sub.2    CH  CH.sub.3                                                                               F       O  m.p. 174-176°                   305 CHF.sub.2    CH  CH.sub.3                                                                               Br      O                                         306 CHF.sub.2    CH  C.sub.2 H.sub.5                                                                        OC.sub.2 H.sub.5                                                                       O                                         307 CHF.sub.2    CH  C.sub.2 H.sub.5                                                                        SCH.sub.3                                                                              O                                         308 CHF.sub.2    CH  CF.sub.3                                                                               CH.sub.3                                                                               O                                         309 CHF.sub.2    CH  CH.sub.2 Cl                                                                            CH.sub.3                                                                               O                                         310 CHF.sub.2    CH  CH.sub.2 Cl                                                                            OCH.sub.3                                                                              O                                         311 CHF.sub.2    CH  OCH.sub.3                                                                              Cl      O  m.p. 165-167°                   312 CHF.sub.2    CH  Cl      Cl      O  m.p. 183-188°                   313 CHF.sub.2    CH  OCH.sub.3                                                                              SCH.sub.3                                                                              O                                         314 CHF.sub.2    CH  OCH.sub.3                                                                              OCH(CH.sub.3).sub.2                                                                    O                                         315 CHF.sub.2    CH  CH.sub.2 F                                                                             OCH.sub.3                                                                              O                                         316 CHF.sub.2    CH  CH.sub.2 F                                                                             CH.sub.3                                                                               O                                         317 CHF.sub.2    CH  CF.sub.3                                                                               OCH.sub.3                                                                              O                                         318 CHF.sub.2    N   C.sub.2 H.sub.5                                                                        OCH(CH.sub.3).sub.2                                                                    O                                         319 CHF.sub.2    N   C.sub.2 H.sub.5                                                                        Cl      O  m.p. 135-137°                   320 CHF.sub.2    N   C.sub.2 H.sub.5                                                                        SCH.sub.3                                                                              O                                         321 CHF.sub.2    N   C.sub.2 H.sub.5                                                                        CH.sub.3                                                                               O  m.p. 136-138°                   322 CHF.sub.2    N   C.sub.2 H.sub.5                                                                        C.sub.2 H.sub.5                                                                        O                                         323 CHF.sub.2    N   OCH.sub.3                                                                              OCH(CH.sub.3).sub.2                                                                    O  m.p. 113-115°                   324 CHF.sub.2    N   OCH.sub.3                                                                               ##STR13##                                                                             O                                           325                                                                              CHF.sub.2    N   CH.sub.3                                                                               CH(CH.sub.3).sub.2                                                                     O  m.p. 137-140°                   326 CHF.sub.2    N   CH(CH.sub.3).sub.2                                                                     Cl      O  m.p. 160-162°                   327 CHF.sub.2    N   CH(CH.sub.3).sub.2                                                                     OCH.sub.3                                                                              O  m.p. 75-78°                     328 CHF.sub.2    N   CH(CH.sub.3).sub.2                                                                     OC.sub.2 H.sub.5                                                                       O                                         329 CHF.sub.2    N   CH(CH.sub.3).sub.2                                                                     SCH.sub.3                                                                              O                                         330 CHF.sub.2    N   CH.sub.2 Cl                                                                            CH.sub.3                                                                               O  m.p. 113-115°                   331 CHF.sub.2    N   CH.sub.2 Cl                                                                            OCH.sub.3                                                                              O  m.p. 94-96°                     332 CHF.sub.2    N   CH.sub.2 F                                                                             CH.sub.3                                                                               O                                         333 CHF.sub.2    N   CH.sub.2 F                                                                             OCH.sub.3                                                                              O                                         334 CHF.sub.2    N   CH.sub.2 F                                                                             OC.sub.2 H.sub.5                                                                       O                                         335 CHF.sub.2    N   CH.sub.2OCH.sub.3                                                                      C.sub.2 H.sub.5                                                                        O                                         336 CHF.sub.2    N   CH.sub.2SCH.sub.3                                                                      OCH.sub.3                                                                              O                                         337 CHF.sub.2    N   CH.sub.2SCH.sub.3                                                                      CH.sub.3                                                                               O                                         338 CHF.sub.2    N   CH.sub.2SCH.sub.3                                                                      SCH.sub.3                                                                              O                                         339 CHF.sub.2    N   CH.sub.2SCH.sub.3                                                                      Cl      O                                         340 CHF.sub.2    N   CH.sub.2SCH.sub.3                                                                      OC.sub.2 H.sub.5                                                                       O                                         341 CHF.sub.2    N   SCH.sub.3                                                                              Cl      O  m.p. 147-149°                   342 CHF.sub.2    N   SCH.sub.3                                                                              OCH.sub.3                                                                              O  m.p. 161-162°                   343 CHF.sub.2    N   SCH.sub.3                                                                              OC.sub.2 H.sub.5                                                                       O                                         344 CHF.sub.2    N   SCH.sub.3                                                                              OCH(CH.sub.3).sub.2                                                                    O  m.p. 163-164°                   345 CHF.sub.2    N   OCH(CH.sub.3).sub.2                                                                    Cl      O  m.p. 103-104°                   346 CHF.sub.2    N   CF.sub.3                                                                               OCH.sub.3                                                                              O                                         347 CHF.sub.2    N   CF.sub.3                                                                               CH.sub.3                                                                               O                                         348 CHF.sub.2    N   CF.sub.3                                                                               OC.sub.2 H.sub.5                                                                       O                                         349 CHF.sub.2    N   CCl.sub.3                                                                              OCH.sub.3                                                                              O                                         350 CHF.sub.2    N   CCl.sub.3                                                                              SCH.sub.3                                                                              O                                         351 CHF.sub.2    N   CH.sub.3                                                                               Cl      O                                         352 CHF.sub.2    N   OCH.sub.3                                                                              Cl      O  m.p. 167-168°                   353 CHF.sub.2    N   OCH.sub.3                                                                              F       O                                         354 CHF.sub.2    N   OCH.sub.3                                                                              Br      O                                         355 CHF.sub.2    N   CH.sub.3                                                                               F       O                                         356 CH.sub.2 F   N   CH.sub.3                                                                               OCH.sub.3                                                                              O                                         357 CH.sub.2 F   N   OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         358 CH.sub.2 F   N   CH.sub.3                                                                               CH.sub.3                                                                               O                                         359 CH.sub.2 F   N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O                                         360 CH.sub.2 F   CH  CH.sub.3                                                                               OCH.sub.3                                                                              S                                         361 CH.sub.2 F   CH  OCH.sub.3                                                                              OCH.sub.3                                                                              S                                         362 CH.sub.2 F   CH  CH.sub.3                                                                               CH.sub.3                                                                               S                                         363 CH.sub.2 F   N   CH.sub.3                                                                               OCH.sub.3                                                                              O                                         364 CH.sub.2 F   CH  CH.sub.3                                                                               OCH.sub.3                                                                              O                                         365 CH.sub.2 F   CH  OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         366 CH.sub.2 F   N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O                                         367 CH.sub.2 F   N   CH.sub.3                                                                               CH.sub.3                                                                               O                                         368 CF.sub.2CF.sub.2 Br                                                                         N   CH.sub.3                                                                               OCH.sub.3                                                                              O                                         369 CF.sub.2CF.sub.2 Br                                                                         CH  CH.sub.3                                                                               OCH.sub.3                                                                              O                                         370 CF.sub.2Cf.sub.2 Br                                                                         CH  OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         371 CF.sub.2CF.sub.2 Cl                                                                         N   CH.sub.3                                                                               OCH.sub.3                                                                              S                                         372 CH.sub.2CH.sub.2 F                                                                          N   CH.sub.3                                                                               OCH.sub.3                                                                              O                                         373 CH.sub.2CH.sub.2 F                                                                          N   CH.sub.3                                                                               CH.sub.3                                                                               O                                         374 CH.sub.2CH.sub.2 F                                                                          N   OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         375 CH.sub.2CH.sub.2 F                                                                          N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O                                         376 CH.sub.2CH.sub.2 F                                                                          CH  CH.sub.3                                                                               OCH.sub.3                                                                              O                                         377 CH.sub.2CH.sub.2 F                                                                          CH  OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         378 CH.sub.2CH.sub.2 F                                                                          CH  CH.sub.3                                                                               CH.sub.3                                                                               O                                         379 CH.sub.2CH.sub.2 F                                                                          N   CH.sub.3                                                                               OCH.sub.3                                                                              S                                         380 CH.sub.2CH.sub.2 F                                                                          N   OCH.sub.3                                                                              OCH.sub.3                                                                              S                                         381 CH.sub.2CCl.sub.3                                                                           N   CH.sub.3                                                                               OCH.sub. 3                                                                             O                                         382 CH.sub.2CCl.sub.3                                                                           N   OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         383 CH.sub.2CCl.sub.3                                                                           CH  CH.sub.3                                                                               OCH.sub.3                                                                              O                                         384 CH.sub.2CCl.sub.3                                                                           CH  OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         385 CH.sub.2CCl.sub.3                                                                           N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O                                         386 CF.sub.2CH.sub.3                                                                            N   OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         387 CF.sub.2CH.sub.3                                                                            N   CH.sub.3                                                                               OCH.sub.3                                                                              O                                         388 CF.sub.2CH.sub.3                                                                            N   CH.sub.3                                                                               CH.sub.3                                                                               O                                         389 CF.sub.2CH.sub.3                                                                            CH  CH.sub.3                                                                               OCH.sub.3                                                                              O                                         390 CF.sub.2CH.sub.3                                                                            CH  OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         391 CH.sub.2CH.sub.2 Cl                                                                         N   CH.sub.3                                                                               OCH.sub.3                                                                              S                                         392 CH.sub.2CH.sub.2 Cl                                                                         N   OCH.sub.3                                                                              OCH.sub.3                                                                              S                                         393 CH.sub.2CH.sub.2 Cl                                                                         N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              S                                         394 CH.sub.2CH.sub.2 Cl                                                                         N   CH.sub.3                                                                               OC.sub.2 H.sub.5                                                                       S                                         395 CH.sub.2CH.sub.2 Cl                                                                         CH  C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              S                                         396 CH.sub.2CH.sub.2 Cl                                                                         N   CH.sub.3                                                                               OC.sub.2 H.sub.5                                                                       O                                         397  CH.sub.2CH.sub.2 Cl                                                                        N   CH.sub.3                                                                               OC.sub.2 H.sub.5                                                                       S                                         398 CH.sub.2CH.sub.2 Cl                                                                         CH  OCH.sub.3                                                                              OCH.sub.3                                                                              S                                         399 CH.sub.2CH.sub.2 Cl                                                                         CH  CH.sub.3                                                                               OCH.sub.3                                                                              S                                         400 CH.sub.2CH.sub.2 Cl                                                                         N   CF.sub.3                                                                               OCH.sub.3                                                                              O                                         401 CH.sub.2CH.sub.2 Cl                                                                         N   CH.sub.2 F                                                                             OCH.sub.3                                                                              O                                         402 CH.sub.2CH.sub.2 Cl                                                                         CH  CH.sub.2 CH.sub.3                                                                      CL      O                                         403 CH.sub.2CH.sub.2 Cl                                                                         CH  OCH.sub.3                                                                              Cl      O                                         404 CH.sub.2CH.sub.2 Cl                                                                         CH  CH.sub.2 OCH.sub.3                                                                     OCH.sub.3                                                                              O                                         405 CH.sub.2CH.sub.2 Cl                                                                         N   CH.sub.2 OCH.sub.3                                                                     O                                                 406 CH.sub.2CH.sub.2 Cl                                                                         N   CH.sub.3                                                                               OCH.sub.3                                                                              O  m.p. 147-175°                   407 CH.sub.2CH.sub.2 Cl                                                                         N   OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         408 CH.sub.2CH.sub.2 Cl                                                                         N   CH.sub.3                                                                               CH.sub.3                                                                               O                                         409 CH.sub.2CH.sub.2 Cl                                                                         N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O                                         410 CH.sub.2CH.sub.2 Cl                                                                         N   C.sub.2 H.sub.5                                                                        CH.sub.3                                                                               O                                         411 CH.sub.2CH.sub. 2 Cl                                                                        N   CH.sub.3                                                                               Cl      O                                         412 CH.sub.2CH.sub.2 Cl                                                                         N   CH.sub.2 Cl                                                                            OCH.sub.3                                                                              O                                         413 CH.sub.2CH.sub.2 Cl                                                                         N   OCH.sub.3                                                                              OCH(CH.sub.3).sub.2                                                                    O                                         414 CH.sub.2CH.sub.2 Cl                                                                         N   OCH.sub.3                                                                              SCH.sub.3                                                                              O                                         415 CH.sub.2CH.sub.2 Cl                                                                         N   CH(CH.sub.3).sub.2                                                                     OCH.sub.3                                                                              O                                         416 CH.sub.2CH.sub.2 Cl                                                                         N   OC.sub.2 H.sub.5                                                                       OCH.sub.3                                                                              O                                         417 CH.sub.2CH.sub.2 Cl                                                                         N   OC.sub.2 H.sub.5                                                                       OC.sub.2 H.sub.5                                                                       O                                         418 CH.sub.2CH.sub.2 Cl                                                                         N   OCH.sub.3                                                                              CL      O                                         419 CH.sub.2CH.sub.2 Cl                                                                         CH  CH.sub.3                                                                               OCH.sub.3                                                                              O                                         420 CH.sub.2CH.sub.2 Cl                                                                         CH  OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         421 CH.sub.2CH.sub.2 Cl                                                                         CH  CH.sub.3                                                                               CH.sub.3                                                                               O                                         422 CH.sub.2CH.sub.2 Cl                                                                         CH  CH.sub.3                                                                               Cl      O                                         423 CH.sub.2CH.sub.2 Cl                                                                         CH  CH.sub.3                                                                               F       O                                         424 CH.sub.2CH.sub.2 Cl                                                                         CH  C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O                                         425 OCH.sub.2CHClCH.sub.2 Cl                                                                    N   CH.sub.3                                                                               OCH.sub. 3                                                                             O                                         426 OCH.sub.2CHClCH.sub.2 Cl                                                                    N   OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         427 OCH.sub.2CHClCH.sub.2 Cl                                                                    N   CH.sub.3                                                                               CH.sub.3                                                                               O                                         428 OCH.sub.2CHClCH.sub.2 Cl                                                                    N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O                                         429 OCH.sub.2CHClCH.sub.2 Cl                                                                    CH  CH.sub.3                                                                               OCH.sub.3                                                                              O                                         430 OCH.sub.2CHClCH.sub.2 Cl                                                                    CH  OCH.sub.3                                                                              OCH.sub.3                                                                              O                                         431 OCH.sub.2CHClCH.sub.2 Cl                                                                    CH  CH.sub.3                                                                               CH.sub.3                                                                               O                                         432 OCH.sub.2CHClCH.sub.2 Cl                                                                    N   CH.sub.3                                                                               OCH.sub.3                                                                              S                                         433 OCH.sub.2CHClCH.sub.2 Cl                                                                    N   OCH.sub.3                                                                              OCH.sub.3                                                                              S                                         434 OCH.sub.2CHClCH.sub.2 Cl                                                                    CH  CH.sub.3                                                                               OCH.sub.3                                                                              S                                         435 OCH.sub.2CHClCH.sub.2 Cl                                                                    CH  OCH.sub.3                                                                              OCH.sub.3                                                                              S                                         436 OCH.sub.3CHClCH.sub.2 Cl                                                                    N   C.sub.2 H.sub.5                                                                        CH.sub.3                                                                               O                                         437 OCH.sub.2CHClCH.sub.2 Cl                                                                    N   OCH.sub.3                                                                              Cl      O                                         438 OCH.sub.2CHClCH.sub.2 Cl                                                                    CH  CH.sub.3                                                                               Cl      O                                         439 CH.sub.2 F   N   CH.sub.3                                                                               OC.sub.2 H.sub.5                                                                       O                                         440 CH.sub. 2 F  CH  CH.sub.3                                                                               Cl      O                                         441 CH.sub.2 F   N   OCH.sub.3                                                                              Cl      O                                         442 CH.sub.2CHClCH.sub.2 Cl                                                                     CH  C.sub.2 H.sub.5                                                                        Cl      O                                         443 CH.sub.2CHBrCH.sub.2 Br                                                                     N   CH.sub.3                                                                               OCH.sub.3                                                                              O                                         444                                                                                 ##STR14##   N   CH.sub.3                                                                               OCH.sub.3                                                                              O                                           445                                                                               ##STR15##   N   OCH.sub.3                                                                              OCH.sub.3                                                                              O                                           446                                                                               ##STR16##   N   CH.sub.3                                                                               CH.sub.3                                                                               O                                           447                                                                               ##STR17##   CH  CH.sub.3                                                                               OCH.sub.3                                                                              O                                           448                                                                               ##STR18##   CH  CH.sub.3                                                                               Cl      O                                           449                                                                               ##STR19##   CH  OCH.sub.3                                                                              OCH.sub.3                                                                              O                                           450                                                                               ##STR20##   N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O                                           451                                                                              CF.sub.2CHF.sub.2                                                                           N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O  m.p. 158-160°                   452 CF.sub. 2CHF.sub.2                                                                          CH  CH.sub.3                                                                               Cl      O                                         453 CF.sub.2CHF.sub.2                                                                           CH  OCH.sub.3                                                                              Cl      O  m.p. 164-165°                   454 CF.sub.2CHFCl                                                                               N   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O  m.p. 144-146°                   455 CF.sub.2CHFCl                                                                               CH  CH.sub.3                                                                               Cl      O  m.p. 177-179°                   456 CF.sub.2CHFCl                                                                               CH  OCH.sub.3                                                                              Cl      O  m.p. 164-165°                   457 CF.sub.2CHFCl                                                                               N   CH(CH.sub.3).sub.2                                                                     OCH.sub.3                                                                              O  m.p. 128-130°                   __________________________________________________________________________

                                      TABLE 3                                      __________________________________________________________________________      ##STR21##                                                                            Position                         Physical data                          No.                                                                               A   of XA R.sub.1                                                                              R.sub.3 R.sub.4 X E  (°C.)                           __________________________________________________________________________     501                                                                               CHF.sub.2                                                                          2     5-F   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O N  m.p. 140-141°                   502                                                                               CHF.sub.2                                                                          2     5-F   CH.sub.3                                                                               Cl      O CH                                        503                                                                               CHF.sub.2                                                                          2     5-F   OCH.sub.3                                                                              SCH.sub.3                                                                              O N                                         504                                                                               CHF.sub.2                                                                          2     5-F   OCH.sub.3                                                                              OCH(CH.sub.3).sub.2                                                                    O N                                         505                                                                               CHF.sub.2                                                                          2     5-F   OCH.sub.3                                                                              Cl      O N                                         506                                                                               CHF.sub.2                                                                          2     5-F   C.sub.2 H.sub.5                                                                        OCH.sub. 3                                                                             S N                                         507                                                                               CHF.sub.2                                                                          2     5-F   CH.sub.3                                                                               Cl      S N                                         508                                                                               CHF.sub.2                                                                          2     5-F   CH.sub.3                                                                               Cl      S CH                                        509                                                                               CHF.sub.2                                                                          2     5-F   C.sub.2 H.sub.5                                                                        CH.sub.3                                                                               O N                                         510                                                                               CHF.sub.2                                                                          2     5-F   C.sub.2 H.sub.5                                                                        CH.sub.3                                                                               O CH                                        511                                                                               CHF.sub.2                                                                          2     5-F   OCH.sub.3                                                                              Cl      O CH m.p. 160-161°                   512                                                                               CHF.sub.2                                                                          2     5-F   OC.sub.2 H.sub.5                                                                       Cl      O N                                         513                                                                               CHF.sub.2                                                                          2     5-F   CH.sub.3                                                                               F       O N                                         514                                                                               CHF.sub.2                                                                          2     5-F   CH.sub.3                                                                               Br      O N                                         515                                                                               CHF.sub.2                                                                          2     5-F   CH.sub.3                                                                               Br      O CH                                        516                                                                               CHF.sub.2                                                                          2     5-F   CH.sub.3                                                                               F       O CH                                        517                                                                               CHF.sub.2                                                                          2     5-F   C.sub.2 H.sub.5                                                                        Cl      O CH                                        518                                                                               CHF.sub.2                                                                          2     5-F   CH.sub.2 F                                                                             OCH.sub.3                                                                              O N                                         519                                                                               C.sub.2 F.sub.2                                                                    2     5-F   CH.sub.3                                                                               OCH.sub.3                                                                              O N                                         520                                                                               C.sub.2 F.sub.5                                                                    2     5-F   CH.sub.3                                                                               OCH.sub.3                                                                              O N                                         521                                                                               C.sub.2 F.sub.5                                                                    2     5-F   CH.sub.3                                                                               OCH.sub.3                                                                              O CH                                        522                                                                               C.sub.2 F.sub.5                                                                    2     5-F   OCH.sub.3                                                                              OCH.sub.3                                                                              O CH                                        523                                                                               C.sub.2 F.sub.5                                                                    2     5-F   CH.sub.3                                                                               Cl      O CH                                        525                                                                               C.sub.2 F.sub.5                                                                    2     6-F   CH.sub.3                                                                               OCH.sub.3                                                                              O N                                         526                                                                               C.sub.2 F.sub.5                                                                    2     6-F   CH.sub.3                                                                               OCH.sub.3                                                                              O CH                                        527                                                                               C.sub.2 F.sub.5                                                                    2     6-F   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O N                                         528                                                                               C.sub.2 F.sub.5                                                                    2     6-F   CH.sub.3                                                                               OCH.sub.3                                                                              S N                                         529                                                                               C.sub.2 F.sub.5                                                                    2     6-F   CH.sub.3                                                                               OCH.sub.3                                                                              S CH                                        530                                                                               C.sub.2 F.sub.5                                                                    2     6-F   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              S N                                         531                                                                               C.sub.2 F.sub.5                                                                    2     6-COOCH.sub.3                                                                        CH.sub.3                                                                               OCH.sub.3                                                                              O N                                         532                                                                               C.sub.2 F.sub.5                                                                    2     6-COOCH.sub.3                                                                        OCH.sub.3                                                                              OCH.sub.3                                                                              O N                                         533                                                                               C.sub.2 F.sub.5                                                                    2     6-COOCH.sub.3                                                                        CH.sub.3                                                                               OCH.sub.3                                                                              O CH                                        534                                                                               C.sub.2 F.sub.5                                                                    2     6-F   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O N                                         535                                                                               CHF.sub.2                                                                          2     6-F   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O N                                         536                                                                               CHF.sub.2                                                                          2     6-F   CH.sub.3                                                                               Cl      O CH                                        537                                                                               CHF.sub.2                                                                          2     6-F   CH.sub.3                                                                               Br      O CH                                        538                                                                               CHF.sub.2                                                                          2     6-F   OCH.sub.3                                                                              OCH(CH.sub.3).sub.2                                                                    O N                                         539                                                                               CHF.sub.2                                                                          2     6-F   OCH.sub.3                                                                              Cl      O N                                         540                                                                               CHF.sub.2                                                                          2     6-F   CH(CH.sub.3).sub.2                                                                     OCH.sub.3                                                                              O N                                         541                                                                               CHF.sub.2                                                                          2     6-F   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O CH                                        542                                                                               CHF.sub.2                                                                          2     6-F   C.sub.2 H.sub.5                                                                        Cl      O CH                                        543                                                                               CHF.sub.2                                                                          2     6-F   CH.sub.3                                                                               SCH.sub.3                                                                              O N                                         544                                                                               CHF.sub.2                                                                          2     6-F   OCH.sub.3                                                                              SCH.sub.3                                                                              O N                                         545                                                                               CHF.sub.2                                                                          2     6-F   OCH(CH.sub.3).sub.2                                                                    Cl      O N                                         546                                                                               CHF.sub.2                                                                          2     6-F   C.sub.2 H.sub.5                                                                        CH.sub.3                                                                               O N                                         547                                                                               CHF.sub.2                                                                          2     6-F   CH(CH.sub.3).sub.2                                                                     CH.sub.3                                                                               O N                                         548                                                                               CHF.sub.2                                                                          2     6-F   CH.sub.2 F                                                                             OCH.sub.3                                                                              O N                                         549                                                                               CHF.sub.2                                                                          4     6-F   C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              S N                                         550                                                                               CHF.sub.2                                                                          2     6-F   CH.sub.3                                                                               Cl      S CH                                        551                                                                               CHF.sub.2                                                                          2     6-F   CH.sub.3                                                                               Br      S CH                                        552                                                                               CHF.sub.2                                                                          2     6-F   OCH.sub.3                                                                              Cl      S CH                                        553                                                                               CHF.sub.2                                                                          2     6-F   C.sub.2 H.sub.5                                                                        CH.sub.3                                                                               S CH                                        554                                                                               CHF.sub.2                                                                          2     5 Cl  C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O N                                         555                                                                               CHF.sub.2                                                                          2     5 Cl  CH(CH.sub.3).sub.2                                                                     OCH.sub.3                                                                              O N                                         556                                                                               CHF.sub.2                                                                          2     5 Cl  CH.sub.3                                                                               Cl      O CH                                        557                                                                               CHF.sub.2                                                                          2     5 Cl  OCH.sub.3                                                                              Cl      O CH                                        558                                                                               CHF.sub.2                                                                          2     5 Cl  OCH(CH.sub.3).sub.2                                                                    OCH.sub.3                                                                              O N                                         559                                                                               CHF.sub.2                                                                          2     5 Cl  OCH.sub.3                                                                              SCH.sub.3                                                                              O CH                                        560                                                                               CHF.sub.2                                                                          2     5-Cl  C.sub.2 H.sub.5                                                                        OCH.sub.3                                                                              O N  m.p. 130-132°                   561                                                                               CHF.sub.2                                                                          2     5-Cl  CH(CH.sub.3).sub.2                                                                     OCH.sub.3                                                                              O N  m.p. 149-151°                   562                                                                               CHF.sub.2                                                                          2     5-Cl  CH.sub.3                                                                               Cl      O CH m.p. 182° (decomp.)             563                                                                               CHF.sub.2                                                                          2     5-Cl  OCH.sub.3                                                                              Cl      O CH m.p. 170-172°                   564                                                                               CHF.sub.2                                                                          2     5-Cl  OCH(CH.sub.3).sub.2                                                                    OCH.sub.3                                                                              O N  m.p. 128-135°                   565                                                                               CHF.sub.2                                                                          2     5-Cl  OCH.sub.3                                                                              SCH.sub.3                                                                              O CH                                        __________________________________________________________________________

                                      TABLE 4                                      __________________________________________________________________________      ##STR22##                                                                             Position              Physical data                                    No. A   of XA R.sub.1                                                                               R.sub.2                                                                           X  E  (°C.)                                     __________________________________________________________________________     601 CHF.sub.2                                                                          3     6-NO.sub.2                                                                            3-Br                                                                              S  N                                                   602 CF.sub.3                                                                           3     6-COOC.sub.2 H.sub.5                                                                  3-Br                                                                              O  N                                                   603 CF.sub.3                                                                           3     6-COOC.sub.2 H.sub.5                                                                  3-Br                                                                              S  N                                                   604 CF.sub.3                                                                           3     6-CH.sub.3                                                                            2-Cl                                                                              SO.sub.2                                                                          CH                                                  605 CHF.sub.2                                                                          3     6-CH.sub.3                                                                            2-Cl                                                                              SO.sub.2                                                                          CH                                                  606 CHF.sub.2                                                                          3     2-NO.sub.2                                                                            2-Cl                                                                              O  N                                                   607 CHF.sub.2                                                                          3     2-NO.sub.2                                                                            2-Cl                                                                              O  CH                                                  608 CHF.sub.2                                                                          3     2-COOC.sub.2 H.sub.5                                                                  2-Cl                                                                              O  N                                                   609 CHF.sub.2                                                                          3     2-COOC.sub.2 H.sub.5                                                                  2-Cl                                                                              S  N                                                   610 CHF.sub.2                                                                          3     6-Cl   2-Cl                                                                              O  CH                                                  611 CHF.sub.2                                                                          3     6-Cl   2-Cl                                                                              S  CH                                                  612 CHF.sub.2                                                                          3     6-Cl   2-Cl                                                                              SO N                                                   613 CHF.sub.2                                                                          3     6-Cl   2-Cl                                                                              SO.sub.2                                                                          N                                                   614 CHF.sub.2                                                                          3     2-CF.sub.3                                                                            2-Cl                                                                              O  N                                                   615 CHF.sub.2                                                                          3     5-NO.sub.2                                                                            2-Cl                                                                              O  N  m.p. 170-172°C.                           616 CHF.sub.2                                                                          3     6-OCH.sub.3                                                                           2-Cl                                                                              O  CH                                                  617 CHF.sub.2                                                                          3     6-OCH.sub.3                                                                           2-Cl                                                                              O  N                                                   618 CHF.sub.2                                                                          3     6-SCH.sub.3                                                                           2-Cl                                                                              O  CH                                                  619 CHF.sub.2                                                                          3     6-SCH.sub.3                                                                           2-Cl                                                                              O  N                                                   620 CHF.sub.2                                                                          3     2-SO.sub.2 CH.sub.3                                                                   2-Cl                                                                              O  CH                                                  621 CHF.sub.2                                                                          3     2-SO.sub.2 CH.sub.3                                                                   2-Cl                                                                              O  N                                                   __________________________________________________________________________

                                      TABLE 5                                      __________________________________________________________________________      ##STR23##                                                                                                        Physical                                                      Position         data                                        No. A       X  m  in XA E  R.sub.3                                                                            R.sub.4                                                                            (°C.)                                __________________________________________________________________________     701 CHF.sub.2                                                                              O  2  2,5   N  CH.sub.3                                                                           OCH.sub.3                                                                          m.p. 113°                            702 CHF.sub.2                                                                              S  2  2,5   N  CH.sub.3                                                                           OCH.sub.3                                       703 CHF.sub.2                                                                              O  2  2,6   N  CH.sub.3                                                                           OCH.sub.3                                       704 CHF.sub.2                                                                              O  2  2,5   CH CH.sub.3                                                                           OCH.sub.3                                       705 CHF.sub.2                                                                              O  2  2,5   CH Cl  CH.sub.3                                        706 CHF.sub.2                                                                              O  2  2,5   CH Cl  OCH.sub.3                                       707 CHF.sub.2                                                                              O  2  2,5   N  C.sub.2 H.sub.5                                                                    OCH.sub.3                                       708 CHF.sub.2                                                                              O  2  2,5   N  OCH.sub.3                                                                          OCH.sub.3                                       709 CF.sub.2CF.sub.2 H                                                                     O  2  2,5   N  CH.sub.3                                                                           OCH.sub.3                                       710 CF.sub.3                                                                               O  2  2,5   N  CH.sub.3                                                                           OCH.sub.3                                       __________________________________________________________________________

                  TABLE 6                                                          ______________________________________                                          ##STR24##                                                                       No. A         E      R.sub.3   R.sub.4   X                                   ______________________________________                                         801 CHF.sub.2                                                                              N      C.sub.2 H.sub.5                                                                            OCH.sub.3 O                                     802 CHF.sub.2                                                                              CH     C.sub.2 H.sub.5                                                                            OCH.sub.3 O                                     803 CHF.sub.2                                                                              N      OCH.sub.3   OCH(CH.sub.3).sub.2                                                                      O                                     804 CHF.sub.2                                                                              N      CH(CH.sub.3).sub.2                                                                         OCH.sub.3 O                                     805 CHF.sub.2                                                                              N      C.sub.2 H.sub.5                                                                            OCH.sub.3 S                                     806 CHF.sub.2                                                                              CH     C.sub.2 H.sub.5                                                                            OCH.sub.3 S                                     807 CHF.sub.2                                                                              N      C.sub.2 H.sub.5                                                                            OCH(CH.sub.3).sub.2                                                                      S                                     808 CHF.sub.2                                                                              N      CH(CH.sub.3).sub.2                                                                         OCH.sub.3 S                                     809 C.sub.2 F.sub.5                                                                        N      CH.sub.3    OCH.sub.3 O                                     810 C.sub. 2 F.sub.5                                                                       N      CH.sub.3    OCH.sub.3 S                                     811 CF.sub.2CHF.sub.2                                                                      N      C.sub.2 H.sub.5                                                                            OCH.sub.3 O                                     812 CF.sub.2CHF.sub.2                                                                      N      OCH(CH.sub.3).sub.2                                                                        OCH.sub.3 O                                     ______________________________________                                    

Example 7

Formulation examples (throughout, percentages are by weight)

    ______________________________________                                         (a) Wettable powders                                                                               (a)     (b)     (c)                                        ______________________________________                                         active ingredient   20%     60%     0.5%                                       sodium lignosulfonate                                                                              5%      5%      5%                                         sodium laurylsulfate                                                                               3%      --      --                                         sodium diisobutylnaphthalene-                                                                      --      6%      6%                                         sulfonate                                                                      octylphenol polyethylene glycol                                                                    --      2%      2%                                         ether (7-8 moles of ethylene                                                   oxide)                                                                         highly dispersed silicic acid                                                                      5%      27%     27%                                        kaolin              67%     --      --                                         sodium chloride     --      --      59.5%                                      ______________________________________                                    

The active ingredient is thoroughly mixed with the adjuvants and the mixture is thoroughly ground in a suitable mill, affording wettable powders which can be diluted with water to give suspensions of the desired concentration.

    ______________________________________                                         (b) Emulsifiable concentrate                                                                          (a)     (b)                                             ______________________________________                                         active ingredient      10%     1%                                              octylphenol polyethylene glycol                                                                        3%     3%                                              ether (4-5 moles of ethylene                                                   oxide)                                                                         calcium dodecylbenzenesulfonate                                                                        3%     3%                                              castor oil polyglycol ether                                                                            4%     4%                                              (36 moles of ethylene oxide)                                                   cyclohexanone          30%     10%                                             xylene mixture         50%     79%                                             ______________________________________                                    

Emulsions of any required concentration can be obtained from this concentrate by dilution with water.

    ______________________________________                                         (c) Dusts          (a)     (b)                                                 ______________________________________                                         active ingredient   0.1%    1%                                                 talcum             99.9%   --                                                  kaolin             --      99%                                                 ______________________________________                                    

Dusts which are ready for use are obtained by mixing the active ingredient with the carriers, and grinding the mixture in a suitable mill.

    ______________________________________                                         (d) Extruder granulate                                                                              (a)     (b)                                               ______________________________________                                         active ingredient    10%     1%                                                sodium lignosulfonate                                                                               2%      2%                                                carboxymethylcellulose                                                                              1%      1%                                                kaolin               87%     96%                                               ______________________________________                                    

The active ingredient is mixed and ground with the adjuvants, and the mixture is subsequently moistened with water. The mixture is extruded and then dried in a stream of air.

    ______________________________________                                         (e) Coated granulate                                                           ______________________________________                                         active ingredient  3%                                                          polyethylene glycol 200                                                                           3%                                                          kaolin             94%                                                         ______________________________________                                    

The finely ground active ingredient is uniformly applied, in a mixer, to the kaolin moistened with polyethylene glycol. Non-dusty coated granulates are obtained in this manner.

    ______________________________________                                         (f) Suspension concentrate                                                                           (a)     (b)                                              ______________________________________                                         active ingredient     40%     5%                                               ethylene glycol       10%     10%                                              nonylphenol polyethylene glycol                                                                       6%     1%                                               ether (15 moles of ethylene                                                    oxide)                                                                         sodium lignosulfonate 10%     5%                                               carboxymethylcellulose                                                                                1%     1%                                               37% aqueous formaldehyde solution                                                                    0.2%    0.2%                                             silicone oil in the form of a 75%                                                                    0.8%    0.8%                                             aqueous emulsion                                                               water                 32%     77%                                              ______________________________________                                    

The finely ground active ingredient is intimately mixed with the adjuvants, giving a suspension concentrate from which suspensions of any desired concentration can be obtained by dilution with water.

    ______________________________________                                         (g) Salt solution                                                              ______________________________________                                         active ingredient     5%                                                       isopropylamine        1%                                                       octylphenol polyethylene glycol                                                                      3%                                                       ether (78 moles of ethylene oxide)                                             water                 91%                                                      ______________________________________                                    

BIOLOGICAL EXAMPLES Example 8

Preemergence herbicidal action

In a greenhouse, plant seeds are sown in flower pots of 12-15 cm diameter. Immediately after sowing, the surface of the soil is treated with an aqueous dispersion or solution of the compounds to be tested. Concentrations of 4 kg a.i./ha are employed. The pots are then kept in the greenhouse at 22°-25° C. and 50-70% relative humidity. The test is evaluated 3 weeks later in accordance with the following rating:

1=plants totally withered

2-3=very pronounced action

4-6=medium action

7-8=insignificant action

9=no action (as untreated controls)

    ______________________________________                                         Preemergence Action                                                            Rate of application: 4 kg a.i./ha                                              Compound   Avena   Setaria   Sinapis                                                                              Stellaria                                   ______________________________________                                          1         2       1         2     1                                            2         6       4         2     2                                            19        2       1         2     1                                           261        6       3         2     2                                           302        4       1         2     2                                           303        3       1         2     2                                           312        7       3         2     2                                           323        3       2         2     2                                           342        5       4         2     2                                           344        4       2         2     2                                           345        3       1         2     2                                           352        4       2         2     2                                           701        2       1         2     1                                           ______________________________________                                    

Example 9

Selective preemergence action

A large number of plant seeds are treated with compounds to be tested at different rates of application in the same test procedure as described in Example 8. Evaluation is made in accordance with the same rating.

    __________________________________________________________________________     Test Results (preemergence)                                                    Action                                                                         Rate of application                                                            kg a.i./ha Compound 19 Compound 24                                             Test plant 0.25                                                                              0.12                                                                              0.06                                                                              0.03                                                                              0.25                                                                              0.12                                                                              0.06                                                                              0.03                                           __________________________________________________________________________     wheat      5  6  7  9  9  9  9  9                                              maize      3  3  7  8  9  9  9  9                                              Avena fatua                                                                               5  6  6  8  9  9  9  9                                              Alopecurus myos.                                                                          2  2  2  3  4  9  9  9                                              Echinochloa c.g.                                                                          2  2  3  3  6  6  9  9                                              Rottboellia ex.                                                                           3  3  4  4  7  9  9  9                                              Cyperus escul.                                                                            2  3  3  5  3  4  9  9                                              soybeans   2  2  3  3  4  4  8  9                                              cotton     1  2  2  2  2  2  6  6                                              Abutilon   1  1  1  1  1  1  2  2                                              Xanthium Sp.                                                                              2  2  2  3  2  2  9  9                                              Amaranthus ret.                                                                           -- -- -- -- 3  3  3  3                                              Chenopodium Sp.                                                                           2  2  2  2  2  2  2  2                                              Solanum nigrum                                                                            -- -- -- -- 3  3  3  3                                              Ipomosa    2  2  2  2  2  2  4  7                                              Sinapis    1  1  1  1  1  2  6  6                                              Stellaria  -- -- -- -- 2  2  2  2                                              Chrysanth. leuc.                                                                          -- -- -- -- 2  2  2  2                                              Galium aparine                                                                            2  2  3  3  5  6  6  9                                              Viola tricolor                                                                            1  1  1  1  2  2  2  2                                              Veronica Sp.                                                                              -- -- -- -- 1  1  1  1                                              __________________________________________________________________________

    __________________________________________________________________________     Action                                                                         Rate of application                                                            kg a.i./ha Compound 261                                                                               Compound 701                                            Test plant 0.25                                                                              0.12                                                                              0.06                                                                              0.03                                                                              0.25                                                                              0.12                                                                              0.06                                                                              0.03                                           __________________________________________________________________________     wheat      7  8  9  9  2  3  6  9                                              maize      9  9  9  9  1  2  3  5                                              Avena fatua                                                                               7  8  8  9  2  2  3  4                                              Alopecurus myos.                                                                          4  4  5  7  2  2  2  2                                              Echinochloa c.g.                                                                          2  3  3  3  2  2  2  2                                              Rottboellia ex.                                                                           4  4  7  7  2  3  3  3                                              Cyperus escul.                                                                            1  2  3  3  3  7  7  7                                              soybeans   6  9  9  9  2  2  3  3                                              cotton     4  4  4  9  2  4  6  7                                              Abutilon   1  2  4  4  3  3  4  4                                              Xanthium Sp.                                                                              4  6  6  3  1  1  2  2                                              Chenopodium Sp.                                                                           2  2  3  3  1  1  2  2                                              Ipomosa    2  2  3  4  2  2  2  3                                              Sinapis    1  1  2  3  2  2  2  3                                              Galium aparine                                                                            2  3  3  3  2  2  4  6                                              Viola tricolor                                                                            2  2  2  2  1  2  2  3                                              __________________________________________________________________________

Example 10

Postemergence herbicidal action (contact action)

A number of weeds and cultivated plants in pots, both monocots and dicots, are sprayed postemergence, in the 4- to 6-leaf stage, with an aqueous active ingredient dispersion at a rate of application of 4 kg a.i./ha, and then kept at 24°-26° C. and 45-60% relative humidity. The test is evaluated 15 days after treatment and the action is assessed in accordance with the same rating as in Example 8.

    __________________________________________________________________________     Postemergence action                                                           Rate of application: 4 kg a.i./ha                                              Comp-                                                                          pound                                                                              Avena                                                                              Setaria                                                                            Lolium                                                                             Solanum                                                                             Sinapis                                                                            Stellaria                                                                           Phaseolus                                        __________________________________________________________________________      1  2   4   3   2    2   3    3                                                 2  7   7   3   2    2   3    5                                                 19 3   4   2   2    2   4    2                                                261 7   6   4   1    2   3    4                                                302 3   3   3   2    3   4    3                                                303 4   2   4   3    2   2    4                                                312 7   6   4   6    3   7    7                                                323 3   4   4   1    2   2    3                                                342 6   5   3   3    1   2    3                                                344 4   4   4   2    2   2    4                                                345 5   4   3   3    2   4    5                                                352 6   5   4   3    2   4    4                                                701 2   3   3   2    2   3    3                                                __________________________________________________________________________

Example 11

Selective postemergence action

A large number of plants are treated with the compounds to be tested at different rates of application in the same test procedure as described in Example 10. Evaluation is made using the same rating as in Example 8.

    __________________________________________________________________________     Test Results (postemergence)                                                   Action                                                                         Rate of appli-                                                                 cation kg a.i./ha                                                                         Compound 24 Compound 701                                            Test plant 0.25                                                                              0.12                                                                              0.06                                                                              0.03                                                                              0.25                                                                              0.12                                                                              0.06                                                                              0.03                                           __________________________________________________________________________     barley     9  9  9  9  -- -- -- --                                             wheat      9  9  9  9  4  6  9  9                                              maize      9  9  9  9  2  4  4  8                                              dry rice   4  4  6  9  7  7  7  9                                              Avena fatua                                                                               -- -- -- -- 2  3  4  6                                              Alopecurus myos.                                                                          7  9  9  9  2  3  3  3                                              Echinochloa c.g.                                                                          -- -- -- -- 2  2  3  3                                              Sorghum halep.                                                                            3  3  9  9  -- -- -- --                                             Rottboellia ex.                                                                           -- -- -- -- 4  4  7  9                                              soybeans   1  2  3  3  4  4  6  6                                              cotton     7  7  7  7  9  9  9  9                                              Xanthium Sp.                                                                              1  1  1  2  1  1  2  3                                              Amarantus ret.                                                                            2  2  3  3  -- -- -- --                                             Chenopodium Sp.                                                                           3  3  4  4  3  3  4  4                                              Sinapis    3  3  3  3  2  2  2  2                                              Stellaria  4  4  4  4  -- -- -- --                                             Chrysanth. leuc.                                                                          3  3  3  3  -- -- -- --                                             Galium aparine                                                                            -- -- -- -- 2  2  4  4                                              Viola tricolor                                                                            -- -- -- -- 2  2  2  2                                              __________________________________________________________________________

Example 12

Inhibition of sprouting in stored potatoes

A number of commercially available potatoes of the "Urgenta" variety, without sprouts, are washed and dried. The potatoes are then immersed in emulsions of the compounds to be tested in different concentrations, placed on filter paper in plastic dishes, and kept in the dark at 14° and 21° C. and 50% relative humidity. Evaluation is made 34 days after application.

The percentage weight loss of the tubers and the weight of the sprouts compared with untreated controls are simultaneously determined.

In this test, a number of compounds of the formula I inhibited sprouting completely. At the same time the weight loss of the potatoes was less than 10% of the weight loss of the controls.

Example 13

Growth inhibition of tropical cover crops

The test plants (centrosema plumieri and centrosema pubescens) are reared until fully grown and then cut back to a height of 60 cm. The plants are sprayed 7 days later with an aqueous emulsion of the compound to be tested. The test plants are kept at 70% relative humidity and 6000 lux artificial light for 14 hours per day, at day temperatures of 27° C. and night temperatures of 21° C. The test is evaluated 4 weeks after application.

In this test, the new growth of plants treated with a number of compounds of the formula I is markedly reduced (less than 20%), without damage being caused to the test plants. 

What is claimed is:
 1. A compound of the formula: ##STR25## wherein A is --CF₂ CF₃, --CH₂ CH₂ Cl, CF₂ CF₂ Cl, or --CF₂ CF₂ Br.
 2. The compound according to claim 1 which is 2-(2-chloro-1,1,2,2-tetrafluoroethoxy)phenylsulfonamide.
 3. The compound according to claim 1 which is 2-(2-bromo-1,1,2,2-tetrafluoroethoxy)phenylsulfonamide.
 4. The compound 2-pentafluoroethoxyphenylsulfonamide.
 5. The compound 2-(2-chloroethoxy)phenylsulfonamide. 